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1. If it takes 4 hours to dig a hole by 50 workers, how long should it take to dig the same hole by 30 workers?
- A. 2 hours 24 minutes
- B. 2 hours 24 minutes
- C. 2 hours 24 minutes
- D. 2 hours 24 minutes
Answer: Option D
Explanation:
Here, 4 hours = 240 minutes
Now, 50 workers can dig the hole in 240 minutes
So, 30 workers can dig the hole in 240×50/30 = 400 minutes = 6 hours 40 minutes
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