The ratio between the ages of A and B is 3 : 5 and the sum of their ages is 56 yr. The ratio between their ages 7 yr ago was

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Accepted Answer

Age of A = (3/8) x 56 = 21 yr Age of B = (5/8) x 56 = 35 yr Before 7yr, ration of the ages of A and B = (21 - 7) : (35 - 7) = 14 : 28 = 1 : 2

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