A father is nine times as old as his son and the mother is eight times as old as the son. The sum of the father's and the mother's age is 51 years. What is the age of the son ?
(a) 7 years (b) 5 years (d) 4 years (d) 3 years
(b) Let Seema’s present age be x years. Then, Seema’s son’s present age = x/4 years Seema’s father’s present age = 7x/4 years. Then, x+ x/4 +7x/4= 32x3 12x = 96 × 4 x = 96...
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