1. 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 ?
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By: guest on 02 Jun 2017 02.07 am
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 age = 12 + x = 16 years.