1.

5 years ago, the ratio of the age of A to that of B was 4 ∶ 5. Five years hence, the ratio of the age of A to that of B will be 6 ∶ 7. If, at present, C is 10 years younger than B, then what will be the ratio of the present age of A to that of C?

A. 5 ∶ 3
B. 3 ∶ 2
C. 4 ∶ 3
D. 5 ∶ 4
Answer» E.


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