- A30 days
- B22 1/2 days
- C20 days
- D25 days
Step-by-Step Solution
Total 1200 worker-days; 300 done. Left 900 with 40 workers: days.
Answer: B) 22 1/2 days
A contractor employs 30 workers to finish a road in 40 days. After 10 days, he adds 10 more workers. How many MORE days do they need?
Class 8Workers, Days and HoursDirect and Inverse Proportions
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