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A is twice as good a workman as B and together they finish a piece of work in 14 days. The number of days taken by A alone to finish the work is
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- 11 days
- 21 days
- 28 days
- 42 days
Correct Option: B
Using Rule 2,
If A completes the work in x days, B will take 2x days.
| ∴ | + | = | ||||
| x | 2x | 14 |
| = | = | |||
| 2x | 14 |
⇒ 2x = 42 ⇒ x = 21 days
