Multiple choice

The age of Pankaj is four times the age of his son. After 10 years, the age of Pankaj will be twice the age of his son. What is the present age of Pankaj’s son?

  1. 8

  2. 7

  3. 5

  4. 6

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let son's age = S, Pankaj's age = P = 4S. After 10 years: P+10 = 2(S+10). Substituting: 4S + 10 = 2S + 20, so 2S = 10, S = 5. The son is currently 5 years old.