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The age of the father 4 years ago was 8 times the age of his son. At present, the father’s age is 4 times that of his son. Find the present age of son.
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- 9 years
- 7 years
- 14 years
- 18 years
Correct Option: B
Suppose, the present age of son be P years.
Therefore, the present age of father = 4P years
According to the question,
4 years ago , 8 ( the present age of son – 4 years ) = ( the present age of father – 4 )
4 years ago , 8 (P – 4) = 4P – 4
⇒ 8P – 32 = 4P – 4
⇒ 8P – 4P = 32 – 4
⇒ 4P = 28
| ∴ P = | = 7 | 4 |
Hence ,the present age of son be 7 years.
