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If 10 men can do a piece of work in 12 days, the time taken by 12 men to do the same piece of work will be
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- 12 days
- 10 days
- 9 days
- 8 days
Correct Option: B
Where = number of days
⇒ 12 : 10 :: 12 : x
⇒ 12 × x = 10 × 12
| ⇒x = | = 10 days | 12 |
Aliter : Using Rule 1,
Here, M1 = 10, D1 = 12
M2 = 12, D2 = ?
M1D1 = M2D2
10 × 12 = 12 × D2
D2 = 10 days
