1.

Present ages of Richa and her husband are in ratio 3 : 4. Five years from now, ages of her husband and her son will be in ratio 3 : 1. If the present age of Richa is 21 years, then what will be her son’s present age (in years)?

A. 16
B. 11
C. 6
D. 5
Answer» D. 5


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