Question

The ratio of ages NIlam and Anu is 4 ∶ 9 and Anu is greater than Nilam by 30 years. Find the sum of their ages?
1.  78 years
2. 75 years
3. 80 years
4. 72 years
5. 84 years

Answer 1

Correct Answer - Option 1 :  78 years

Given:

Ratio of ages NIlam and Anu is 4 ∶ 9

Concept Used: 

Ratio concept is used.

Calculation:

Let the present age of Nilam and Anu be 4x and 9x.

Difference = 9x – 4x = 5x

According to question,

5x = 30

⇒ x = 6

So, Sum of their ages = 4x + 9x = 13x = 13 × 6 = 78 years

∴ Sum of their ages is 78 years old.