- A21
- B24
- C18
- D16
Step-by-Step Solution
Total work = labourer-days; with 24 labourers it takes 504 / 24 = 21 days.
Answer: A) 21
18 labourers can lay a village road in 28 days. If 24 labourers are put on the job, all working equally fast, how many days will it take?
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