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]]>**1. There is a new data-type which can take as values natural numbers between**

** (and including) 0 and 25. How many minimum bits are required to store this datatype.**

A: 4

B: 5

C: 1

D: 3

**Correct Answer : 2**

**2. A data type is stored as an 6 bit signed integer. Which of the following cannot**

**be represented by this data type?**

A: -12

B: 0

C: 32

D: 18

**Correct Answer : 3**

**3. A language has 28 different letters in total. Each word in the language is composed of maximum 7 letters. You want to create a data-type to store a word of this language. You decide to store the word as an array of letters. How many bits will you assign to the data-type to be able to store all kinds of words of the language.**

A: 7

B: 35

C: 28

D: 196

**Correct Answer : 2**

**4. A 10-bit unsigned integer has the following range:**

A: 0 to 1000

B: 0 to 1024

C: 1 to 1025

D: 0 to 1023

**Correct Answer : 4**

**5. Rajni wants to create a data-type for the number of books in her book case. Her shelf can accommodate a maximum of 75 books. She allocates 7 bits to the datatype. Later another shelf is added to her book-case. She realizes that she can still use the same data-type for storing the number of books in her book-case. What is the ****maximum possible capacity of her new added shelf?**

A: 52

B: 127

C: 53

D: 75

**Correct Answer : 1**

**6. A new language has 15 possible letters, 8 different kinds of punctuation marks and a blank character. Rahul wants to create two data types, first one which could store the letters of the language and a second one which could store any character in the language. The number of bits required to store these two data-types will**

**respectively be:**

A: 3 and 4

B: 4 and 3

C: 4 and 5

D: 3 and 5

**Correct Answer : 3**

**7. Parul takes as input two numbers: a and b. a and b can take integer values between 0 and 255. She stores a, b and c as 1-byte data type. She writes the following code statement to process a and b and put the result in c.**

**c = a + 2*b**

**To her surprise her program gives the right output with some input values of a and b,**

**while gives an erroneous answer for others. For which of the following inputs will it**

**give a wrong answer?**

A: a = 10 b = 200

B: a = 200 b = 10

C: a = 50 b = 100

D: a = 100 b = 50

**Correct Answer : 1**

**8. Prashant takes as input 2 integer numbers, a and b, whose value can be between 0 and 127. He stores them as 7 bit numbers. He writes the following code to process these numbers to produce a third number c.**

**c = a – b**

**In how many minimum bits should Prashant store c?**

A: 6 bits

B: 7 bits

C: 8 bits

D: 9 bits

**Correct Answer : 3**

**9. Ankita takes as input 2 integer numbers, a and b, whose value can be between 0 and 31. He stores them as 5 bit numbers. He writes the following code to process these numbers to produce a third number c.**

**c = 2*(a – b)**

**In how many minimum bits should Ankita store c?**

A: 6 bits

B: 7 bits

C: 8 bits

D: 9 bits

**Correct Answer : 2**

**10. A character in new programming language is stored in 2 bytes. A string is represented as an array of characters. A word is stored as a string. Each byte in the memory has an address. The word “Mahatma Gandhi” is stored in the memory with starting address 456. The letter ‘d’ will be at which memory address?**

A: 468

B: 480

C: 478

D: 467

**Correct Answer : 3**

**11. Stuti is making a tionnaire of True-false tions. She wants to define a data-type which stores the response of the candidate for the tion. What is the most-suited data type for this purpose?**

A: integer

B: boolean

C: float

D: character

**Correct Answer : 2**

**12. What will be the output of the following pseudo-code statements:**

**integer a = 456, b, c, d =10**

**b = a/d**

**c = a – b**

**print c**

A: 410

B: 410.4

C: 411.4

D: 411

**Correct Answer : 4**

**13. What will be the output of the following pseudo-code statements:**

**integer a = 984, b, c, d =10**

**print remainder(a,d) // remainder when a is divided by d**

**a = a/d**

**print remainder(a,d) // remainder when a is divided by d**

A: 48

B: Error

C: 84

D: 44

**Correct Answer : 1**

**14. What will be the output of the following code statements?**

**integer a = 50, b = 25, c = 5**

**print a * b / c + c**

A: 120

B: 125

C: 255

D: 250

**Correct Answer : 3**

**15. What will be the output of the following code statements?**

**integer a = 10, b = 35, c = 5**

**print a * b / c – c**

A: 65

B: 60

C: Error

D: 70

**Correct Answer : 1**

**16. integer a = 10, b = 35, c = 5**

**Comment about the output of the two statements?**

**print a * b + c / d**

**print c / d + a * b**

A: Differ due to left-to-right precedence

B: Differ by 10

C: Differ by 20

D: Same

**Correct Answer : 4**

**17. integer a = 40, b = 35, c = 20, d = 10**

**Comment about the output of the following two statements:**

**print a * b / c – d**

**print a * b / (c – d)**

A: Differ by 80

B: Same

C: Differ by 50

D: Differ by 160

**Correct Answer : 1**

**18. integer a = 60, b = 35, c = -30**

**What will be the output of the following two statements:**

**print ( a > 45 OR b > 50 AND c > 10 )**

**print ( ( a > 45 OR b > 50 ) AND c > 10 )**

A: 0 and 1

B: 0 and 0

C: 1 and 1

D: 1 and 0

**Correct Answer : 4**

**19. What will be the output of the following pseudo-code statements:**

**integer a = 984, b=10**

**//float is a data-type to store real numbers.**

**float c**

**c = a / b**

**print c**

A: 984

B: 98.4

C: 98

D: Error

**Correct Answer : 3**

**20. What will be the output of the following pseudo-code statements:**

**integer a = 984**

**//float is a data-type to store rational numbers.**

**float b= 10, c**

**c = a / b**

**print c**

A: 984

B: Error

C: 98.4

D: 98

**Correct Answer : 3**

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]]>**1: Statement : Nearly 25% of drivers who cause accidents are not license holders.**

**Conclusions : **

**(a) Only experts and trained persons are issued a driving license.**

**(b) One is allowed to drive even without a driving license.**

**(c) It is quite easy to get a driving license in India.**

**(d) Driving does not mix with drinking.**

**(e) Driving license holders are not drinkers.**

A: conclusion a

B: conclusion b

C: conclusion c

D: conclusion d

**Answer : A**

**2: Statement: Despite the availability of technology many umpiring decisions in cricket matches are wrong. Conlcusions: I. Umpires do not take the help of the third umpire often.**

**II. With the current rules, one cannot conclude how long the game of cricket will continue to suffer like this.**

A: Conclusion I follows.

B: Conclusion II follows

C: Either Conclusion I or II follows

D: Both conclusion I and II follows.

**Answer : D**

**3: Statement: Many Non Government Organisations (NGO’s) are engaged in the task of getting social justice to those who are exploited.**

**Conlcusions: I. Social justice is extremely important for people.**

**II. Government has not been able to bring social justice to people.**

A: Conclusion I follows.

B: Conclusion II follows

C: Either Conclusion I or II follows

D: Neither conclusion I nor II follows

**Answer : A**

**4: Statement :The minimum qualification for this job is graduation .However the candidates who have appeared for the final year of graduation can also apply.**

**I. All candidates who have yet to graduate will be there in the list of selected candidates.**

**II. All candidates having graduation as their minimum qualification will be there in the list of selected candidates.**

A: Only conclusion one follows

B: Only conclusion II follows

C: Both the conclusion I and II follows

D: Neither I nor II follows

**Answer : B**

**5: Statements: Some farmers are landlords. All landlords are labours. Some labours are merchants.**

**Conclusions: I. Some labours are farmers.**

**II. Some merchants are farmers.**

**III. Some merchants are landlords.**

**IV. Some landlords are farmers.**

A: None follow

B: Only IV follow

C: Only I follow

D: Both I and IV follows

**Answer : D**

**6: Statement :Tamarind is a typical tropical tree which needs little water but humid conditions.**

**Conclusions : I. All tropical trees need less water but more moisture.**

**II. Tropical climate has more humidity.**

A: Conclusion I follows

B: Conclusion II follows

C: Both the conclusion I and II follow

D: Either conclusion I or II follows

**Answer : C**

**7: Statements: All rings are birds. Some birds are cages. All cages are kites.**

**Conclusions: I. All kites are cages.**

**II. Some kites are rings.**

**III. Some birds are kites.**

A: Only I follows

B: Only II follows

C: Only III follows

D: Only I and II follow

**Answer : C**

**8: Statements: Some rings are phones. Some phones are computers. Some computers are stations.**

**Conclusions: I. Some stations are rings.**

**II. Some phones are stations.**

**III. Some computers are rings.**

**IV. All rings are stations.**

A: None follows

B: Only I and II follow

C: Only I, II and III follow

D: Only II and III follow

**Answer : A**

**9: Looking at a portrait of a man, Harsh said, “His mother is the wife of my father’s son. Brothers and sisters I have none.” At whose portrait was Harsh looking?**

A: His son

B: His cousin

C: His uncle

D: His nephew

**Answer : A**

**10: 2, 6, 30, 210, _____**

A: 1680

B: 1800

C: 1890

D: 2010

**Answer : C**

**11: If in a certain code “made” is coded as 1234 and “ream” is coded as 5421, then “dream” is coded as**

A: 35421

B: 43512

C: 35412

D: 34521

**Answer : A**

**12: 2197:13 :: 3375 : ?**

A: 11

B: 17

C: 15

D: 9

**Answer : C**

**13: 7:11::31: ?**

A: 33

B: 37

C: 39

D: 42

**Answer : B**

**14: QT : FHK :: DFI **

A: CEH

B: BEH

C: BFH

D: AFH

**Answer : A**

**15: FACE: HACE :: BACE **

A: DACE

B: CASE

C: NACE

D: LACE

**Answer : A**

**16: D18H : G27k :: R60V : …**

a) U111Y

b) U69Y

c) J69Y

d) J111Y

**Answer : B**

**17: D4P:H4L:P5R:…**

a)V4N

b)V4S

c)U5M

d)R4N

**Answer : c**

**18: A & B have two children E and F.T is tho only son of F.S is the spouse of E.Q is brother of T.How is Q related to S??**

A) Son

B) Uncle

C) Nephew

D) Aunt

**Answer : A**

**19: Lakshmi is mother in law of surabhi who is sister in law of dilip.rajat is father of raman.the only brother of dilip.how lakshmi is related to dilip**

a)mother

b)aunt

c)wife

d)mother in law

**Answer : D**

**20: If r = at2 and s = 2at, the relation among s, r and a is:**

A: s2=4ar

B: s=ar

C: s=2ar

D: s2=ar

**Answer : A**

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]]>

**1: cia is only daughter of bob who was celebrating her b’day.A total of 5 member attended the party.Amy was daughter-in-law of frida who was the wife of Emanuel.Danny was the son of Amy and brother of cia.How is Amy related to Emanuel??**

a)daughter-in-law

b)grand daughter

c)daughter

d)sister

**Answer : A**

**2: Find what is next number**

2000,2250,5000,?

**Answer : 16000**

**3: If COMET+SATURN=URANUS**

**then**

**EARTH+PHOBOS=?**

**Answer : BOHSBP**

**4: If A= {2, 4, 6}, B= {1, 2, 5, 7}, and C= {2, 3, 4, 6}. Find A-(B U C)**

**Answer : {}**

**5: If lcm of 2 nums is 729 then hcf?**

**Answer : 1**

**6: Set of 3 lines occurred 10 times in different parts of program. Parts of program are:**

A) loops

B) functions

C) arrays

D) classes

**Answer : B**

**7: If r = at2 and s = 2at, the relation among s, r and a is:**

A: s2=4ar

B: s=ar

C: s=2ar

D: s2=ar

**Answer : A**

**8: If a, b, c are roots of the equation 1×3-4×2+6.5x + 3.5 = 0, then what is the value of a2 + b2 + c2?**

A: 1

B: 64

C: 169

D: 3

**Answer : D**

**9: 6,9,__,24,39.**

1) 18

2) 15

3) 10

4) 12

**Answer : 15**

**10: 754:310::976:??**

**Answer : 643**

**11:. Find the odd man out. 3576, 1784, 888, 440, 216, 105, 48**

A. 105

B. 216

C. 888

D. 1784

**Answer : A**

**12: Find the odd man out. 30, -5, -45, -90, -145, -195, -255**

A. -5

B. -145

C. -255

D. -195

**Answer :B**

**13: Find the odd man out. 3576, 1784, 888, 440, 216, 105, 48**

A. 105

B. 216

C. 888

D. 1784

**Answer : A**

**14: Find the odd man out. 30, -5, -45, -90, -145, -195, -255**

A. -5

B. -145

C. -255

D. -195

**Answer :B**

**15: In how many different ways can the letters of the word ‘JUDGE’ be arranged such that the vowels always come together?**

A. None of these

B. 64

C. 32

D. 48

**Answer : D**

**16: Find the missing number 5 : 24 :: 8 : ?**

a. 65

b. 63

c. 62

d. 64

**Answer : B**

**17: From the given choices select the odd man out**

a. DFHEG

b. TWXUV

c. OQSPR

d. JLNKM

**Answer : B**

**18: if 6m = 46656, What is the value of 6m-2 ?**

A. 36

B. 7776

C. 216

D. 1296

**Answer : D**

**19: Statements: Science is a sort of new agency comparable in principle to other news agencies. But this news agency gives us information which is reliable to an extraordinary high degree due to elaborate techniques of verification and its capacity to survive centuries. So science should be read with as much interest as we read news.**

**Assumptions :**

** I. Science encourages investigative spirit.**

**II. People read news out of interest.**

A: Only assumption I is implicit

B: Only assumption II is implicit

C: Both assumption I and II are implicit.

D: Neither assumption I or II is implicit.

**Answer : C**

**20:Statement: Should the term for Lok Sabha reduced to four years ?**

**Arguments : **

**I. No, it would mean more frequent elections and more burden on the national exchequer.**

**II. Yes, it would make political leaders more conscious towards going to the voters.**

A: Only argument I is strong.

B: Only argument II is strong

C: Either I or II is strong.

D: Neither I nor II is strong.

**Answer : A**

**1: What is the next number of the following sequence. 1,3,4,5,10,9,19,15,…..**

**first part-1,4,10,19**

1+3=4

4+6=10

10+9=19

19+12=31(3,6,9,12 are the multiples of 3)

**second part**

3,5,9,15

3+2=5

5+4=9

9+6=15

15+8=23(2,4,6,8 are the multiples of 2)

**Answer : 31,23**

**2: A & B have two children E and F.T is tho only son of F.S is the spouse of E.Q is brother of T.How is Q related to S??**

a) Son

b) Uncle

c) Nephew

d) Aunt

**Answer : A**

**3: Lakshmi is mother in law of surabhi who is sister in law of dilip.rajat is father of raman.the only brother of dilip.how lakshmi is related to dilip**

a)mother

b)aunt

c)wife

d)mother in law

**Answer : D**

**4: 6:60::120:?**

a)240

b)12

c)48

d)210

e)336

**Answer : e) 336**

**5: If A # B means A is father of B; A $ B means A is mother of B, A @ B means A is sister of B, then how is B related to X in X $ K # A @ B?**

a) Grandson

b) Grand-daughter

c) Nephew

d) Data Inadequate

**Answer : D**

**6: A is started at noon at by 10 min past 5.the hour hand has turned through?**

a) 145 degree

b) 150 degree

c) 155 degree

d) 160 degree

**Answer : C**

**7: Statements: Some dogs are bags. No bag is lion. All rooms are lions. Conclusions:**

**I. Some rooms are bags.**

**II. Some dogs are lions.**

**III. Some rooms are dogs.**

a) All follows

b) Only I follows

c) Only II follows

d) Only III follows

e) None of these follows

**Answer: E**

**8: P is the daughter of Q. R is the brother of P. S is the father of R. how is Q related to S ?**

**Answer: Q is the wife of s.**

**9: A person wanted to withdraw X rupees and Y paisa from the bank. But cashier made a mistake and gave him Y rupees and X paisa. Neither the person nor the cashier noticed that.After spending 20 paisa, the person counts the money. And to his surprise, he has double the amount he wanted to withdraw.**

**Find X and Y. (1 Rupee = 100 Paisa)**

**Answer :**

he wants to withdraw x rupee and y paisa

but he obtained y rupee and x paisa after spending 20 paisa remaining amount = y rupee and (x-20) paisa

it is given that y rupee (x-20) paisa = 2(x rupee y paisa)

on comparison we get y = 2x and x-20 = 2y but on solving we shall get x as a negative number which is a contradiction

an other case is also possible

y rupee (x-20) paisa = 2(x rupee y paisa)

so y rupee (x-20) paisa = 2(x rupee) 2(y paisa)

or y rupee (x-20) paisa = (2x+1) rupee (2y-100) paisa

y = 2x+1, x-20 = 2y-100

on taking y = 2x+1 in second equation, we get x-20 = 2(2x+1)-100

or x-20 = 4x+2-100 or 3x = 78 or x = 26, y = 53

**10: Integer x = 40, y = 35, z = 20, w = 10**

**Comment about the output of the following two statements:**

**print x * y / z – w**

**print x * y / (z – w)**

A) Differ by 80

B) Same

C) Differ by 50

D) Differ by 160

**Answer : A**

**11: If HARD is coded as 1357 and SOFT is coded as 2468, what will 21448 stand for?**

A) SHAFT

B) SHORT

C) SHOOT

D) SHART

**Answer : C**

**12: Find the missing pattern – BOQD: ERTG:: ANPC : ?**

A) DQSF

B) FSHU

C) SHFU

D) DSQF

**Answer : A**

**13: Three consecutive whole numbers are such that the square of the middle number is greater than the product of the other two by 1. Find the middle number.**

A) 6

B) 18

C) 12

D) All of these

**Answer : D**

**14: Rahul is not wearing purple and Aman is not wearing black. Rahul and Sahil wear different colors. Avi alone wears green. What is Sahil’s color, if all four of them are wearing different colors?**

A) Green

B) Black

C) Purple

D) Can’t Say

**Answer : D**

**15: Find the odd man out. 3576, 1784, 888, 440, 216, 105, 48**

A. 105

B. 216

C. 888

D. 1784

**Answer : A**

16: Find the odd man out. 30, -5, -45, -90, -145, -195, -255

A. -5

B. -145

C. -255

D. -195

**Answer :B**

**17: In how many different ways can the letters of the word ‘JUDGE’ be arranged such that the vowels always come together?**

A. None of these

B. 64

C. 32

D. 48

**Answer : D**

**18: Find the missing number**

5 : 24 :: 8 : ?

a. 65

b. 63

c. 62

d. 64

**Answer : B**

**19: From the given choices select the odd man out**

a. DFHEG

b. TWXUV

c. OQSPR

d. JLNKM

**Answer : B**

**20: if 6m = 46656, What is the value of 6m-2 ?**

A. 36

B. 7776

C. 216

D. 1296

**Answer : D**

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]]>**Divisibility**-
**HCF and LCM** -
**Numbers, decimal fractions and power** -
**Profit & Loss ,Simple & Compound Interest** -
**Time, Speed and Distance** -
**Work & Time, Ration & Allegation** -
**Logarithms** -
**Permutation and Combinations** -
**Probability**

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]]>The post AMCAT Maths Probablity Questions And Answers appeared first on Placement Papers with Solutions | Aptitude.

]]>**1. A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The**

**probability that all of them are red, is:**

A: 1/22

B: 3/22

C: 2/91

D: 2/77

**Correct Answer : C**

**2. A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random**

**from this box. The probability that at least one of these is defective, is:**

A: 4/19

B: 7/19

C: 12/19

D: 21/95

**Correct Answer : B**

**3. In a class, 30% of the students offered English, 20% offered Hindi and 10% offered both. If a**

**student is selected at random, what is the probability that he has offered English or Hindi ?**

A: 2/5

B: 3/4

C: 3/5

D: 3/10

**Correct Answer : A**

**4. A box contains 6 red balls, 7 green balls and 5 blue balls. Each ball is of a different size. The**

**probability that the red ball being selected is the smallest red ball, is**

A: 1/18

B: 1/3

C: 1/6

D: 2/3

**Correct Answer : C**

**5. If A and B are 2 independent events and P(A)=0.5 and P(B) = 0.4, find P(A/B):**

A: 0.5

B: 0.4

C: 0.88

D: None of these

**Correct Answer : A**

**6. A 5-digit number is formed by the digits 1,2,3,4 and 5 without repetition. What is the probability**

**that the number formed is a multiple of 4?**

A: 1/4

B: 1/5

C: 2/5

D: 1/120

**Correct Answer : B**

**7. In a single throw of dice, what is the probability to get a number greater or equal to 4?**

A: 1/3

B: 2/3

C: 1/2

D: None of these

**Correct Answer : C**

**8. A bag contains 5 oranges, 4 bananas and 3 apples. Rohit wants to eat a banana or an apple. He**

**draws a fruit from the bag randomly. What is the probability that he will get a fruit of his choice?**

A: 3.5/12

B: 7/12

C: 5/12

D: None of these

**Correct Answer : B**

**9. There are two boxes A and B. Box A has three red and four blue balls. Box B has five red and two**

**blue balls. Anya draws a ball from each bag randomly. What is the probability that both balls are red?**

A: 4/7

B: 8/49

C: 7/8

D: 15/49

**Correct Answer : D**

**10. Ravi has a bag full of 10 Nestle and 5 Cadbury chocolates. He draws two chocolates. What is the**

**probability that he got at least one Nestle chocolate?**

A: 2/3

B: 3/7

C: 2/21

D: None of these

**Correct Answer : D**

**11. The probability of having at least one tail in 5 throws of a coin is**

A: 1/32

B: 31/32

C: 1/5

D: None of these

**Correct Answer : B**

**12. A bag contains 5 yellow and 4 brown pencils. If two pencils are drawn, what is the probability that**

**the pencils are of the same colour?**

A: 5/108

B: 1/6

C: 5/18

D: 4/9

**Correct Answer : D**

**13. A single letter is drawn at random from the word, “ASPIRATION”, the probability that it is a vowel**

**is?**

A: 1/2

B: 1/3

C: 3/5

D: 2/5

**Correct Answer : A**

**14. The probability that a man can hit a target is 3/4. He tries 5 times. The probability that he will hit**

**the target at least three times is:**

A: 291/364

B: 371/464

C: 471/502

D: 459/512

**Correct Answer : D**

**15. An unbiased dice is rolled 3 times. The probability that the value on the dice is not more than 4 in**

**any of the 3 rolls is:**

A: 8/27

B: 1/27

C: 26/27

D: 2/3

**Correct Answer : A**

**16. Probability of occurrence of event A is 0.5 and that of event B is 0.2. The probability of occurrence**

**of both A and B is 0.1. What is the probability that none of A and B occur?**

A: 0.3

B: 0.4

C: 0.7

D: None of these

**Correct Answer : B**

**17. An unbiased coin is tossed 5 times. If tail appears on first four tosses, then probability of tail**

**appearing on the fifth toss is:**

A: 1/2

B: 1

C: 0

D: 4/5

**Correct Answer : A**

**18. X and Y are two independent events. The probability that X and Y occur is 1/12, and the**

**probability that neither occur is 1/2, the probability of occurrence of X can be:**

A: 1/3

B: 1/5

C: 1/2

D: 1/10

**Correct Answer : A**

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]]>The post AMCAT Computer Programming on Miscellaneous Searching and Sorting Question And Answer appeared first on Placement Papers with Solutions | Aptitude.

]]>**1. Abhinav wants to find the largest number in a given list of 20 numbers. Which**

**of the following is an efficient approach to do this?**

A) Use bubble sort to sort the list in descending order and then print the first

number of the series.

B) Use selection sort to sort the list in descending order and then print the first

number of the series.

C) Implement one iteration of selection sort for descending order and print the

first number in the series.

D) None of these

**Correct Answer : C**

**2. Lavanya wants to find the smallest number out of 26 inputted numbers. How**

**many minimum comparisons he has to make?**

A) 25

B) 13

C) 26

D) 52

**Correct Answer : A**

**3. What is space complexity of a program?**

A) Amount of hard-disk space required to store the program

B) Amount of hard-disk space required to compile the program

C) Amount of memory required by the program to run

D) Amount of memory required for the program to compile

**Correct Answer : C**

**4. The memory space needed by an algorithm has a fixed part independent of**

**the problem instance solved and a variable part which changes according to the**

**problem instance solved. In general, which of these two is of prime concern to an**

**algorithm designer?**

A) Fixed part

B) Variable Part

C) Product of fixed part and variable part

D) None of these

**Correct Answer : B**

**5. While calculating time complexity of an algorithm, the designer concerns**

**himself/herself primarily with the run time and not the compile time. Why?**

A) Run time is always more than compile time.

B) Compile time is always more than run time.

C) Compile time is a function of run time.

D) A program needs to be compiled once but can be run several times.

**Correct Answer : D**

**6. Pankaj and Mythili were both asked to write the code to evaluate the**

**following expression:**

a – b + c/(a-b) + (a-b)2

Pankaj writes the following code statements (Code A):

print (a-b) + c/(a-b) + (a-b)*(a-b)

Mythili writes the following code statements (Code B):

d = (a-b)

print d + c/d + d*d

If the time taken to load a value in a variable, for addition, multiplication or division

between two Answererands is same, which of the following is true?

A) Code A uses lesser memory and is slower than Code B

B) Code A uses lesser memory and is faster than Code B

C) Code A uses more memory and is faster than Code B

D) Code A uses more memory and is slower than Code B

**Correct Answer : A**

**7. Vrinda writes an efficient program to sum two square diagonal matrices**

**(matrices with elements only on diagonal). The size of each matrix is nXn. What is the**

**time complexity of Vrinda’s algorithm?**

A) &theta(n^2)

B) &theta(n)

C) &theta(n*log(n))

D) None of these

**Correct Answer : B**

**8. Tarang writes an efficient program to add two upper triangular 10X10 matrices**

**(elements on diagonal retained). How many total additions will his program make?**

A) 100

B) 55

C) 25

D) 10

**Correct Answer : B**

**9. There is an array of size n initialized with 0. Akanksha has to write a code**

**which inserts the value 3k at position 3k in the array, where k=0,1…(till possible).**

**Akanksha writes an efficient code to do so. What is the time complexity of her code?**

A) &theta(n^2)

B) &theta(n)

C) &theta(log3(n))

D) &theta(3n)

**Correct Answer : C**

**10. There are two matrices A and B of size nXn. The data in both these matrices**

**resides only at positions where both the indices are a perfect square. Rest all**

**positions have 0 as the data. Manuj has available a third matrix initialized with 0’s at**

**all positions. He writes an efficient code to put the sum of A and B in C. What is the**

**time complexity of Manuj’s program?**

A) &theta(n^2)

B) &theta(n)

C) &theta(n1/2)

D) &theta(log(n))

**Correct Answer : B**

11. Ravi has to add an strictly upper triangular (no elements at diagonal) and a

strictly lower triangular square matrix (no elements at diagonal) and put the result in

a third matrix. What is the time complexity of Ravi’s algorithm? Assume that storing

a value in a memory space takes negligible time, while each addition between values

takes the dominating amount of time.

A) &theta(n^2)

B) &theta(n)

C) &theta(1)

D) None of these

**Correct Answer : C**

**12. We have two 100X3 (rowsXcolumn) matrices containing mid-term exam marks**

**and end-term exam marks of 100 students. Each row refers to a particular student,**

**while columns refer to marks in English, Social Sciences and Maths. The end-term**

**and mid-term marks of each student in each subject have to be added to get his total**

**score in each subject, to be put in a third matrix (100X3). Parinidhi writes a code**

**(Code A), where the outer loAnswer iterates over the rows, while the inner loAnswer iterates**

**over the columns. Shashi writes a code (Code B), where the outer loAnswer iterates over**

**the columns, while the inner loAnswer iterates over rows. Which of the following is true**

**with regard to their code ignoring any caching or memory storage effects?**

A) Code A is faster than Code B

B) Code B is faster than Code A

C) Code A and Code B will run in the same amount of time

D) The comparison between the speed of the codes cannot be made.

**Correct Answer : B**

**13. A code takes the following code steps (equivalently time unit) to execute:**

**5*n3 + 6*n2 + 1. Which of the following is not true about the time complexity of the**

**program?**

A) It has a time complexity of O(n3)

B) It has a time complexity of O(n4)

C) It has a time complexity of O(n2)

D) It has a time complexity of &theta(n3)

**Correct Answer : C**

**14. We have two programs. We know that the first has a time complexity O(n2),**

**while the second has a complexity &omega(n2). For sufficiently large n, which of the**

**following cannot be true?**

A) Both codes have same complexity

B) The first code has higher time complexity than the second

C) The second code has lower time complexity than the first code.

D) Both codes are the same.

**Correct Answer : B**

**15. The time complexity of code A is &theta(n), while for Code B it is**

**&theta(log(n)). Which of the following is true for sufficiently large n?**

A) Both code have the same time complexity

B) Code A has higher time complexity

C) Code B has higher time complexity

D) No comparison can be made between the time complexity of the two codes.

**Correct Answer : B**

**16. Rajini is given an efficient code for summing two nXn matrices and putting the**

**result in a third matrix. She is asked to find it’s time complexity. She realizes that the**

**number of iterations required is more than n. What can she claim with regard to the**

**complexity of the code?**

A) It is O(n)

B) It is O(n2)

C) It is &theta(n)

D) It is &omega(n)

**Correct Answer : D**

**17. Gautam is given two codes, A and B, to solve a problem, which have**

**complexity &theta(n) and &theta(n2) respectively. His client wants to solve a problem**

**of size k, which Gautam does not know. Which code will Gautam deliver to the client,**

**so that the execution is faster?**

A) Code A

B) Code B

C) Gautam cannot determine

D) Both codes have the same execution time, so deliver any.

**Correct Answer : C**

**18. Surbhi is given two codes, A and B, to solve a problem, which have complexity**

**O(n3) and &omega(n4) respectively. Her client wants to solve a problem of size k,**

**which is sufficiently large. Which code will Surbhi deliver to the client, so that the**

**execution is faster?**

A) Code A

B) Code B

C) Surbhi cannot determine

D) Both codes have the same execution time, so deliver any.

**Correct Answer : A**

**19. Vibhu is given two codes, A and B, to solve a problem, which have complexity**

**O(n4) and &omega(n3) respectively. Her client wants to solve a problem of size k,**

**which is sufficiently large. Which code will Gautam deliver to the client, so that the**

**execution is faster?**

A) Code A

B) Code B

C) Vibhu cannot determine

D) Both codes have the same execution time, so deliver any.

**Correct Answer : C**

**20. Pavithra is given two codes, A and B, to solve a problem, which have**

**complexity &theta(n3) and &omega(n3) respectively. Her client wants to solve a**

**problem of size k, which is sufficiently large. Which code should she deliver to the**

**client in the present scenario?**

A) Code A

B) Code B

C) Both codes have the same execution time, so deliver any.

D) None of these

**Correct Answer : A**

The post AMCAT Computer Programming on Miscellaneous Searching and Sorting Question And Answer appeared first on Placement Papers with Solutions | Aptitude.

]]>The post AMCAT Computer Programming : Polymorphism ,Abstraction ,Encapsulation Questions With Answer appeared first on Placement Papers with Solutions | Aptitude.

]]>**1. Which of these is not a data type?**

A) integer

B) character

C) boolean

D) array

**Correct Answer : D**

**2. The construct “if (condition) then A else B” is for which of the following**

**purposes?**

A) Decision-Making

B) Iteration

C) Recursion

D) Object Oriented Programming

**Correct Answer : A**

**3. In a sequential programming language, code statements are executed in which**

**order?**

A) All are executed simultaneously

B) From tAnswer to bottom

C) From bottom to tAnswer

D) None of these

**Correct Answer : B**

**4. A for-loAnswer is used for which of the following purposes?**

A) Decision-Making

B) Iteration

C) Recursion

D) None of these

**Correct Answer : B**

**5. There are two loAnswers which are nested. This implies which one of the following?**

A) Two loAnswer, one after the other

B) Two loAnswers, one inside the others

C) One loAnswer with two different iteration counts

D) Two loAnswers with the same iteration count

**Correct Answer : B**

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]]>The post AMCAT Computer Programming : Data Structures Arrays, Linked Lists,Questions And Answer appeared first on Placement Papers with Solutions | Aptitude.

]]>**1. Queues serve a major role in**

A) simulation of recursion

B) simulation of arbitrary linked list

C) simulation of limited resource allocation

D) expression evaluation

**Correct Answer : C**

**2. The average search time of hashing with linear probing will be less if the load **

factor

A) is far less than one

B) equals one

C) is far greater than one

D) none of these

**Correct Answer : A**

**3. Number of vertices of odd degree in a graph is**

A) is always even

B) always odd

C) either even or odd

D) always zero

**Correct Answer : A**

**4. The algorithm design technique used in the quick sort algorithm is**

A) Dynamic programming

B) Back tracking

C) Divide and conquer

D) Greedy Search

**Correct Answer : C**

**5. Linked lists are not suitable for**

A) Insertion sort

B) Binary search

C) Queue implementation

D) None of these

**Correct Answer : B**

**6. A connected graph is the one which**

A) Cannot be partitioned without removing an edge

B) Can be partitioned without removing an edge

C) does not contain a cycle

D) Has even number of vertices

**Correct Answer : A**

**7. Stack is useful for implementing**

A) radix search

B) breadth first search

C) recursion

D) none of these

**Correct Answer : C**

**8. Which of the following is useful in traversing a given graph by breadth first**

**search?**

A) stack

B) set

C) list

D) queue

**Correct Answer : D**

**9. Which of the following is useful in implementing quick sort?**

A) stack

B) set

C) list

D) queue

**Correct Answer : A**

**10. Which of the following abstract data types can be used to represent a manyto-many**

**relation?**

A) Tree

B) Stack

C) Graph

D) Queue

**Correct Answer : C**

**11. Two lists, A and B are implemented as singly linked link-lists. The address of**

**the first and last node are stored in variables firstA and lastA for list A**

**and firstB and lastB for list B. Given the address of a node is given in the**

**variable node, the element stored in the node can be accessed by the**

**statement node->data and the address to the next node can be accessed by node-**

**>next. Pankaj wants to append list B at end of list A. Which of the following**

**statements should he use?**

A) lastB -> next = firstA

B) lastA = firstB

C) lastA->next = firstB

D) lastB = firstA

**Correct Answer : C**

**12. Which of the following sorting algorithms yield approximately the same worstcase**

**and average-case running time behaviour in O (n log n)?**

A) Bubble sort and Selection sort

B) Heap sort and Merge sort

C) Quick sort and Radix sort

D) Tree sort and Median-of-3 Quick sort

**Correct Answer : B**

**13. A complete binary tree with 5 levels has how many nodes? (Root is Level 1)**

A) 15

B) 25

C) 63

D) 31

**Correct Answer : D**

**14. The maximum number of nodes on level I of a binary tree is which of the**

**following? (Root is Level 1)**

A) 2l-1

B) 3l-1

C) 2l

D) 2l – 1

**Correct Answer : A**

**15. Consider an array on which bubble sort is used. The bubble sort would**

**compare the element A[x] to which of the following elements in a single iteration.**

A) A [x+1]
B) A [x+2]
C) A [x+2x]
D) All of these.

**Correct Answer : A**

**16. In an implementation of a linked list, each node contains data and address.**

**Which of the following could the address field possibly contain?**

A) Address of next node in sequence

B) It’s own address

C) Address of last node

D) Address of first node

**Correct Answer : A**

**17. Surbhi wants to implement a particular data structure using a static array. She**

**uses the concept of circular list to implement the data structure, because this allows**

**her to efficiently use all fields of the array. Which data structure is Surbhi**

**implementing?**

A) a stack

B) a queue

C) Binary Tree

D) None of these

**Correct Answer : B**

**18. Which of the following is a bad implementation for a queue?**

A) Circular List

B) Doubly linked list

C) Singly linked List

D) Linear Static Array

**Correct Answer : D**

**19. Which of the following statements are true about a doubly-linked list?**

A) it may be either linear or circular

B) it must contain a header node

C) it will occupy same memory space as that of linear linked list, both having

same number of nodes

D) None of these

**Correct Answer : A**

**20. Which of the following data structure may give overflow error, even though**

**the current number of element in it is less than its size ?**

A) Queue implemented in a linear array

B) Queue implemented in a circularly connected array

C) Stack implemented in a linear array

D) none of these

**Correct Answer : A**

The post AMCAT Computer Programming : Data Structures Arrays, Linked Lists,Questions And Answer appeared first on Placement Papers with Solutions | Aptitude.

]]>The post AMCAT Permutations and Combinations Questions And Answer appeared first on Placement Papers with Solutions | Aptitude.

]]>**1. In how many different ways can the letters of the word ‘OPTICAL’ be arranged so that the vowels**

**always come together ?**

A: 120

B: 720

C: 4320

D: 2160

**Correct Answer : B**

**2. In how many different ways can the letters of the word ‘CORPORATION’ be arranged so that the**

**vowels always come together ?**

A: 810

B: 1440

C: 2880

D: 50400

**Correct Answer : D**

**3. How many 3 digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by**

**5 and none of the digits is repeated ?**

A: 5

B: 10

C: 15

D: 20

**Correct Answer : D**

**4. A committee is to be formed comprising 7 members such that there is a simple majority of men**

**and at least 1 women. The shortlist consists of 9 men and 6 women. In how many ways can this be**

**done?**

A: 3,724

B: 3,630

C: 4,914

D: 5,670

**Correct Answer : D**

**5. From a pack of 52 playing cards, 4 cards are removed at random. In how many ways can the 1st**

**place and 3rd place cards be drawn out such that both are black ?**

A: 64,974

B: 62,252

C: 69,447

D: 1,592,500

**Correct Answer : D**

**6. In how many ways can the digits 2,3,5,7 and 9 be placed to form a three-digit number so that the**

**higher order digit is always greater than the lower order digits? (Assume digits are all different).**

A: 8

B: 9

C: 10

D: 15

**Correct Answer : C**

**7. In how many ways can 4 ladies and 4 men form two mixed doubles teams for a tennis match?**

A: 72

B: 108

C: 36

D: 84

**Correct Answer : A**

**8. In CAT entrance examination paper there are 3 sections, each containing 5 questions. A candidate**

**has to solve 5, choosing at least one from each section. The number of ways he can choose is**

A: 2,500

B: 2,250

C: 2,750

D: 3,250

**Correct Answer : B**

**9. A boy has 4 different boxes and 5 different marbles. In how many ways can he place the marbles**

**in the boxes such that each box has at least one marble ?**

A: 560

B: 240

C: 420

D: 36

**Correct Answer : B**

**10. A teacher was trying to form the groups of students in such a way that every group has equal**

**number of students and that number should be a prime number. She tried for first 5 prime numbers, but ****on each occasion exactly one student was left behind. If t**

A: 0

B: 2

C: 3

D: 4

**Correct Answer : D**

**11. Ram buys 7 novels from a book fair. Shyam buys 8 novels from the fair, none of which is common**

**with those bought by Ram. They decide to exchange their books one for one. In how many ways can**

**they exchange their books for the first time ?**

A: 7!x8!

B: 7×8!

C: 7!x8

D: 56

**Correct Answer : D**

**12. In an examination 10 questions are to be answered choosing at least 4 from each of part A and**

**part B. If there are 6 questions in part A and 7 in part B, in how many ways can 10 questions be**

**answered ?**

A: 212

B: 266

C: 272

D: 312

**Correct Answer : B**

**13. A box contains 20 tickets of identical appearance, the tickets being numbered 1, 2, 3, ….., 20. In**

**how many ways can 3 tickets be chosen such that the numbers on the drawn tickets are in arithmetic**

**progression ?**

A: 18

B: 33

C: 56

D: 90

**Correct Answer : D**

**14. A company could advertise about its new product in 4 magazines, 3 newspapers and 2 television**

**channels. But in a later move it decided to give advertisements in only 2 of the magazines, one of the**

**newspapers and one the TV channels. In how many ways can**

A: 30

B: 36

C: 44

D: None of these

**Correct Answer : B**

**15. In how many ways can the letters of the word ‘ERGONOMICS’ be rearranged such that the vowels**

**always appear together?**

A: 6! /2!

B: 6!*4!

C: 7! /2!

D: (7! * 4!)/2!

**Correct Answer : D**

**16. How many different four letter words can be formed (the words need not be meaningful) using**

**the letters of the word PACIFIC such that the first letter is P and the last letter is F?**

A: 8

B: 3

C: 6

D: 7!/5!

**Correct Answer : A**

**17. The value of 74P2 is**

A: 2775

B: 150

C: 5402

D: none of these

**Correct Answer : C**

**18. In how many different ways can the letters of the word ‘ HARDWARE’ be arranged in such a way**

**that the vowels always come together.**

A: 120

B: 1080

C: 1440

D: 4320

**Correct Answer : B**

**19. In how many ways a committee, consisting of 4 men and 10 women can be formed from 6 men**

**and 10 women?**

A: 266

B: 50

C: 15

D: 8640

**Correct Answer : C**

**20. Out of 7 consonants and four vowels ,how many words of three consonants and 2 vowels can be**

**formed?**

A: 210

B: 1050

C: 25200

D: 21400

**Correct Answer : C**

The post AMCAT Permutations and Combinations Questions And Answer appeared first on Placement Papers with Solutions | Aptitude.

]]>