Question

The ratio of the ages of two students is 5 : 4, one is older to the other by 3 years. What is the age of the younger student?
1. 10 years
2. 8 years
3. 12 years
4. 15 years
5. None of these

Answer 1

Correct Answer - Option 3 : 12 years

Given:

Ratio of ages = 5 : 4

Difference between age = 3 years

Calculations:

Let their age be 5x and 4x years.

5x - 4x = 3

⇒ x = 3

Younger student's age = 4x

⇒ 4 × 3 = 12 years

∴ Age of the younger student is 12 years.