Question discussion

The ages of A and B are in the ratio 5 : 3. After 6 years the ratio of their ages will be 3 : 2. What is A's present age?

Correct answer: B

Explanation

Let ages be 5x and 3x; (5x + 6)/(3x + 6) = 3/2 gives x = 6, so A = 30 years.

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