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Total ages at present = 42 Total ages in 10 years = 52 Fractions then 15/26 x 52 and 11/26 x 52, ie 30 and 22 so ages now 25 and 17

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Q: The sum of present ages of a and b is 42 years the ratio of their ages after 5 years will be 15 is to 11 then what is the present age of b?
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