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 ?
A. 14 years
B. 16 years
C. 18 years
D. 20 years
Answer: Option B
Solution (By Examveda Team)
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.
This Question Belongs to Competitive Reasoning >> Arithmetic Reasoning
3:1
M=12 R=4. (Different =8)
2:1
M=16. R=8(Take option)
Ans :B 16 age