Question
Five years ago, the ratio of the ages of A and B was
2:3. After 5 years, the ratio of their ages will be 4:5. What are their present ages?Solution
Let their present ages be 3x and 4x. 5 years ago, their ages were (3x - 5) and (4x - 5). (3x - 5)/(4x - 5) = 2/3. Solving, we get x = 5. Present ages = 15 and 20. Correct Option: a) 15 and 20
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