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 ?	Choose the correct choice from the following choices:	A) 16	B) 27	C) 21	D) 10	E) 11
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.   16nswer: 16
<result>A</result>
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 ?