Exams › IBPS PO › Quantitative Aptitude

The ratio of the present ages of A and B is 6:5. After 10 years, the ratio of their ages will be 7:6. Find the difference in their present ages.

1. 5 years
2. 6 years
3. 10 years
4. 12 years

Correct answer: 10 years

Solution

Let A = 6x and B = 5x. After 10 years, \(\frac{6x+10}{5x+10} = \frac{7}{6}\), which gives x = 10. So the present ages are 60 and 50, and the difference is 10 years.

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