Question
15 years ago, A was 1/5 of B’s age. If the ratio
of their present ages is 3:5, what will be the sum of their present ages?Solution
Let the present age of A and B be 3x and 5x respectively. According to question, => 5(3x – 15) = (5x – 15) => 15x – 75 = 5x – 15 => 10x = 60 => x = 6 Present age of A = 3x = 18 yrs And present age of B = 5x = 30 yrs The sum of their present ages = 18 + 30 = 48 years
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