Question
Ratio of ages of father and son is 3 : 1. The product of
their ages is 147. What is the sum of their ages?Solution
Ratio of ages of father and son is 3: 1. Let their ages be measured in terms of x. The product of their ages is 147. (3x) × (x) = 147 3x2 = 147 X2 = 49 x2=7 Sum of their ages = 3x+x =4x  =4×7 = 28years
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