**Question**

`Ira is younger than Vivan by 7 years and their ages are in the respective ratio of 7 : 9. How old is Ira?`

`Ira is younger than Vivan by 7 years and their ages are in the respective ratio of 7 : 9. How old is Ira?`

A. 24

B. 24.5

C. 23.5

D. 25

**Answer: B. 24.5**

**Solution:**

Let age of Ira and Vivan be **7x **and **9x **respectively.

9x − 7x = 7

⇒ 2x = 7

⇒ x = 3.5

**Ira’s age** = 7x

= 7 × 3.5

**= 24.5**