Top 100+ Problems on Ages Aptitude Questions and Answers - 2

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Question: 6

The average age of 12 students is 20 years. If the age of one more student is included, the average decreases by 1. What is the age of the new student?

(A) 5 years

(B) 6 years

(D) 9 years

View Answer

Ans: C

New average = (20 – 1) = 19

Therefore, Age of new student

= (13 x 19 – 12 x 20) years

= (247 - 240) years

= 7 years.

Question: 7

The ratio of the ages of Meena and Meera is 4 : 3. The sum of their ages is 28 years. The ratio of their ages after 8 years will be

(A) 4 : 3

(B) 6 : 5

(D) 12 : 11

View Answer

Ans: B

Let Meena’s age = 4x and Meera’s age = 3x

Then 4x + 3x = 28

x = 4.

Therefore, Meena’s age = 16 years

and Meera’s age = 12 years

Ratio of their ages after 8 years

= (16 + 8) : ( 12 + 8)

= 24 : 20 = 6 : 5.

Top 100+ Problems on Ages Aptitude Questions and Answers - 2

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