39 persons can repair a road in 12 days, working 5 hours a day. In how many days

Question

39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work?

Options:

A . 10

B . 13

C . 14

D . 15

Answer: Option B

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