Question
The ratio of A and B present age is 9:4. The product of
their ages is 3600. What will be the ratio of their ages after 5 years?Solution
Let their present age be 9x and 4x respectively. Product of their ages = 36x² = 3600 => x² = 100 => x = 10 Present age of A = 9x = 90 years Present age of B = 4x = 40 years Ratio of their ages after 5 years = (90+5) : (40+5) = 95:45 = 19:9
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