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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?

A16 years

B10 years

C12 years

D8 years

Answer:

A. 16 years

Read Explanation:

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


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