Question
5 years ago, A was 1/3 of B’s age. If the ratio of
their present ages is 2:5, what will be the sum of their present ages?Solution
Let the present age of A and B be 2x and 5x respectively. According to question, => 3(2x – 5) = (5x – 5) => 6x – 15 = 5x – 5 => x = 10 Present age of A = 2x = 20 yrs And present age of B = 5x = 50 yrs The sum of their present ages = 20 + 50 = 70 years
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