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A is thrice as good a workman as B and is, therefore, able to finish a piece of work in 60 days less than B. The time (in days) in which they can do it working together is
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- 22 days
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22 1 days 2 - 23 days
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23 1 days 4
Correct Option: B
Using Rule 2,
If A completes the work in x days, B will do the same in 3x days.
∴ 3x – x = 60
⇒ 2x = 60
⇒ x = 30 and 3x = 90
∴ (A + B)’s 1 day’s work
| = | + | = | ||||
| 30 | 90 | 90 |
| = | ||||
| 90 | 45 |
∴ A and B together will do the work in
| or 22 | ||||
| 2 | 2 |
