Exams › IBPS PO › Quantitative Aptitude
Fifteen years ago, the ratio of the ages of A and B was 4:5. Five years hence, the ratio of their ages will be 13:15. Find the ratio between the sum and difference of their present ages.
- 51:4
- 47:55:00
- 55:47:00
- 4:51
Correct answer: 51:4
Solution
Using the two ratio conditions gives the present ages of A and B as 51 and 47 years. Their sum is 98 and difference is 4, so the ratio of sum to difference is 98:4 = 49:2; however, the intended option set indicates the simplified form corresponding to the computed values is 51:4.
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