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A and B together can complete a work in 3 days. They start together. But, after 2 days, B left the work. If the work is completed after 2 more days, B alone could do the work in
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- 10 days
- 4 days
- 6 days
- 8 days
Correct Option: C
| (A + B)’s 2 days’ work = | 3 |
| Remaining work = 1 - | = | |||
| 3 | 3 |
| Time taken by A in doing | work = 2 days | 3 |
∴ Time taken by A in completing the work = 6 days
| ∴ B’s 1 day’s work = | - | |||
| 3 | 6 |
| = | = | |||
| 6 | 6 |
∴ B alone will complete the work in 6 days.
