12 year old Manick is three times as old as his brother Rahul. How old will Manick be when he is twice as old as Rahul?

Question

Accepted Answer

Manick's present age = 12 years, Rahul's present age = 4 years.

Let Manick be twice as old as Rahul after x years from now.

Then, 12 + x = 2 (4 + x) ⟺ 12 + x = 8 + 2x ⟺ x = 4.

Hence, Manick's required …

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