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Question
The ratio of the ages of A and B, 8 years ago, was 2 : 3. Four years ago, the ratio of their ages was 5 : 7. What will be the ratio of their ages 8 years from now?
Options
5 : 6
3 : 4
7 : 8
4 : 5
MCQ
Solution
4 : 5
Explanation:
A | B | |
2 × 2 | : | 3 × 2 |
`↑` 4 | `↑` 4 | |
5 | : | 7 |
: 1 `->` 4
Now
A | B | |
(5 × 4 + 12) | : | (7 × 4 + 12) |
32 | : | 40 |
4 | : | 5 |
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Problems Based on Ages (Entrance Exam)
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