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A certain number of men can do a work in 60 days. If there were eight more men, it could be completed in 10 days less. How many men were there in the beginning?
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- 70
- 55
- 45
- 40
Correct Option: D
Let the number of men in the beginning = x
| Then, | = | |||
| x | 50 |
| ⇒ | = | |||
| x | 5 |
⇒ 6x = 5x + 40 Þ x = 40
Aliter : Using Rule 23,
Here, D = 60, a = 8, d = 10
Required number
| = | d |
| = | = 40 | 10 |
