Question
The present ages of A and B are in the ratio 7:9. After
6 years, their ages will be in the ratio 4:5. What is B’s present age?Solution
ATQ, Let present ages be 7x and 9x. After 6 years: (7x + 6)/(9x + 6) = 4/5 5(7x + 6) = 4(9x + 6) 35x + 30 = 36x + 24 x = 6 So B’s present age = 9x = 54 years
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