Given:
Work to be completed in 10 days
Five men absent
Remaining men complete in 12 days
Formula used:
Work = Number of men × Number of days
Solution:
Let the original number of men be x.
Original plan: => Work = x × 10
With five men absent, there are now (x - 5) men:
=> Work = (x - 5) × 12
Since the total work done remains the same: => x × 10 = (x - 5) × 12
=> 10x = 12x - 60
=> 60 = 12x - 10x
=> 60 = 2x
=> x = 60 ÷ 2
=> x = 30
The original number of men is 30.
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