1.

The ratio of ages of A and B, 4 years ago, was 5 : 7. The ratio of their ages after 4 years from now will be 7 : 9. What will be the ratio of ages of A and B after 12 years from now?

A. 8 : 13
B. 13 : 17
C. 9 : 11
D. 15 : 19
Answer» D. 15 : 19


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