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A contractor undertook to complete a project in 90 days and employed 60 men on it. After 60 days, he found that 3/4 of the work has already been completed. How many men can he discharge so that the project may be completed exactly on time ?
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- 40
- 20
- 30
- 15
Correct Option: B
Using basics of Rule 1,
| ⇒ 30 × | × x = 60 × | × 60 | ||
| 4 | 4 |
| ⇒ x = | = 40 | 30 × 3 |
∴ 20 men should be discharged.
