A is younger than B by 7 years. If their

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Ratios

Question:

A is younger than B by 7 years. If their ages are in the respective ratio of 7 : 9 then how old is A?

Options:

31.5 years

16.5 years

24.5 years

18.5 years

Correct Answer:

24.5 years

Explanation:

Ratio of age of A & B = 7R : 9R

According to question,

⇒ 9R – 7R = 7

⇒ 1R = 3.5

Age of A = 7R = 7 × 3.5 = 24.5 years