1.

The current age of A and B is in the ratio 3 ∶ 4. If the ratio of their ages after six years will be 9 ∶ 11, what was the age of B six years ago?

A. 12 years
B. 10 years
C. 20 years
D. 22 years
E. 18 years
Answer» C. 20 years


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