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A and B together can do a piece of work in 36 days, B and C together can do it in 24 days. A and C together can do it in 18 days. The three working together can finish the work in
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- 8 days
- 16 days
- 30 days
- 32 days
Correct Option: B
| (A + B)’s 1 day’s work = | 36 |
| (B + C)’s 1 day’s work = | 24 |
| (A + C)’s 1 day’s work = | 18 |
On adding all three,
2 (A + B + C)’s 1 day’s work
| = | + | + | ||||
| 36 | 24 | 18 |
| = | 72 |
| = | = | |||
| 72 | 8 |
∴ (A + B + C)’s 1 day’s work
| = | 16 |
∴ Required time = 16 days
