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The ratio of present ages (in years) of a father and son is 15 : 8. Six years ago, the ratio of their ages was 13 : 6 What is the father's present age ?
1. 78 years
2. 45 years
3. 58 years
4. 65 years

1 Answer

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Best answer
Correct Answer - Option 2 : 45 years

Given:

The ratio of present ages (in years) of a father and son is 15 : 8. Six years ago.

And the ratio of their ages was 13 : 6.

Calculation: 

Let the present age of father be 15x years.

And the present age of son be 8x years.

According to the question:

(15x – 6)/(8x – 6 ) = 13/6

⇒ 90x – 36 = 104x – 78

⇒ - 14x = - 42

⇒ x = 3

∴  The present age of father is 15x years = 15 × 3 = 45 years.

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