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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

1 Answer

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Best answer
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.

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