The bridge is completed in 20 days by 80 men. How long will it take 70 men to complete the work?
- 29 days
- 26 days
- 22.86 days
- 27 days
Explanation
Step 1: Find total work in man-days
80 men complete the bridge in 20 days.
Total work = man-days
Step 2: Find time for 70 men
Total work/70
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