## Sample Aptitude Questions

**1.The average age of a man and his son is 28 years. The ratio of their ages is 3 :1 respectively. What is the man’s age?**

A.30 years

B.38 years

C.40 years

D.42 years

E.None of these

**Answer & Explanation**

**Answer : Option D.**

Total sum of man’s age & his son’s age =28 Ã— 2 = 56 Now, the Ratio of their ages is 3 : 1.Therefore, Man’s age = (3/4) Ã— 56 = 42 So, the correct answer is option D.

So, the correct answer is option D.

**2.A basket contains 3 blue, 5 black and 3 red balls. If 3 balls are drawn at random what is the probability that all are black?**

A.2/11

B.1/11

C.3/11

D.8/33

E.None of these

**Answer & Explanation**

**Answer : Option E.**

Ways of selecting 3 black balls out of 5 – 5C3 Total ways of selecting 3 balls – 11C3 The required probability = (5C3 / 11C3 ) = (10/165) = (2/33)

**3.The ratio of the capacity to do work of A and B is 3 : 2. If they together can complete a work in 18 days, then how long does A take to complete the work alone?**

A.45

B.30

C.24

D.40

E.None of these

**Answer & Explanation**

**Answer : Option A.**

Let A and B take 3x and 2x days to complete the work

1/3x+1/2x=1/18 ;x=15

So A will take 45 days.

**4.How many integers are there between 300 and 600 that are divisible by 9?**

A.33

B.31

C.28

D.25

E.None of these

**Answer & Explanation**

**Answer : Option A.**

The sequence is 306,â€¦ 594 594=306+(n-1)9â‡’288=(n-1)9â‡’n=33

**5.The sum of two numbers is 14. If the sum of their reciprocals is 7/24, find the numbers:**

A.4,8

B.8,12

C.4,10

D.6,8

E.None of these

**Answer & Explanation**

**Answer : Option C.**

Going by option , option number 3 and 4 will give sum = 14 but 4th option will give l.c.m 24 and third option gives LCM as 20. It has to be the fourth option.

**6.A, B, C and D are four consecutive odd numbers and their average is 42. What is the product of B and D?**

A.1860

B.1890

C.1845

D.1677

E.None of these

**Answer & Explanation**

**Answer : Option C.**

As there are As diff. Is same so average should lie between B and C so B is 41 & C is 43 so D must be 45 as we have to find the product of B and D so it would be 1845.

**7.The product of two alternative multiples of 4 is eight more than five times their sum. What are the two numbers?**

A.16,32

B.12,20

C.8,16

D.16,24

E.None of these

**Answer & Explanation**

**Answer : Option C.**

Though options, 3rd option satisfies all the conditions.

**8.Find the three terms in arithmetic series such that their sum is 30 and product is 910**

A.8,10,12

B.7,10,13

C.6,10,14

D.5,13,14

E.None of these

**Answer & Explanation**

**Answer : Option B.**

Option 2nd gives product 910.

**9.A car covers the first 30 km of its journey in 45 minutes and the remaining 25 km in 30 minutes. What is the average speed of the car?**

A.40km/hr

B.64km/hr

C.49km/hr

D.48km/hr

E.None of these

**Answer & Explanation**

**Answer : Option E.**

Average speed = = 44 km/hr So option E is the answer.

**10.What is 25% of 30% of 2/5 of 2000 ?:**

A.36

B.40

C.56

D.60

E.none of these

**Answer & Explanation**

**Answer : Option D.**

25% of 30% of 2/5 of 2000 1/4 A— 3/10 A— 2/5 A— 2000 =60