A is three times as old as B. C was twice-as old as A four years ago. In four years' time, A will be 31. What are the present ages of B and C ?

A is three times as old as B. C was twice-as old as A four years ago.

1.	A is three times as old as B. C was twice-as old as A four years ago. In four years' time, A will be 31. What are the present ages of B and C ?
A.	9, 46
B.	9, 50
C.	10, 46
D.	10, 50
Answer» C. 10, 46

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A is three times as old as B. C was twice-as old as A four years ago. In four years' time, A will be 31. What are the present ages of B and C ?

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