Multiple choice

Sonu's father is 5 times as old as Sonu”. After 8 years his age will be thrice Sonu's age at that time. Find their present age?

  1. 30 year, 6 year

  2. 35 year, 7 year

  3. 40 year, 8 year

  4. 45 year, 9 year
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let Sonu's present age be x. Father's age is 5x. After 8 years, Sonu will be (x+8) and father will be (5x+8). At that time, father will be thrice as old: (5x+8) = 3(x+8). Solving: 5x + 8 = 3x + 24, giving 2x = 16, so x = 8. Sonu is 8 years old and father is 40 years old.

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