The present age of a father is twice that of his son. 8.5 years hence, the ratio would be 7 : 4. Find the son's present age.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 25.5 years.
Let the present age of the son = x
The present age of the father = 2x
So, (2x + 8.5)/(x + 8.5) = 7/4
⇒ 8x + 34 = 7x + 59.5
⇒ x = 59.5 - 34 = 25.5
Therefore, the son's present age is 25.5 years.