Question

After 8 years, a man will be 3 times as much old as he is now. After how much time he will be 5 times as much old as now?

• A. 16 years
• B. 10 years
• C. 12 years
• D. 8 years

Answer 1

Answer:

A. 16 years

Let the present age of man be x years Age after 8 years = 3x ⇒ x + 8 = 3x ⇒ 2x = 8 ⇒ x = 4 After n years = 5 × Present age ⇒ x + n = 5x ⇒ 4 + n = 20 ⇒ n = 16 years