A father is 4 times as old as his son. In 20 years, he will be twice as old as his son. How old is the son now?

Topic: Age Problems, Time &amp; Distance, Work
Subtopic: Age Problems

A8 years

B10 years

C12 years

D15 years

Explanation

Let son’s age = x, father’s age = 4x. In 20 years: 4x + 20 = 2(x + 20) => 4x + 20 = 2x + 40 => 2x = 20 => x = 10 years.

Exam Relevance

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