If 15 men can do a work in 12 days, how many men will do the same work in 6 days?
- 20
- 24
- 25
- 30
Explanation
Let the required number of men be x.
| Number of men | 15 | x |
| Number of days | 12 | 6 |
As number of men [M] will increase, the number of days [D] to finish a work will be less.
Hence, it is a case of inverse proportion.
⇒MD=constant
⇒M1D1=M2D2
[1 mark]
⇒15×12=x×6
⇒x=15×126=30
Therefore, the required number of men to finish the work in 30 days is 30 men.
Related MCQs
- 23:40
- 23:17
- 40:23
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 3:2
- 5:2
- 2:3
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 2:1
- 14:3
- 7:2
- 1-2
اس سوال کو وضاحت کے ساتھ پڑھیں
- 30
- 35
- 40
- 45
اس سوال کو وضاحت کے ساتھ پڑھیں
