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| 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 ? |
| 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 age = 12 + x = 16 years. | |