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Question

Efficiency of a man is 25% more than that of a woman. (n - 10) men working 6 hours a day can complete a task in 18 days, whereas (n - 9) women working 6 hours a day can complete the same task in 20 days. Find the time taken by (n + 2) men and (n - 3) women working 9 hours a day to complete the task.

A 8 days

B 3 days

C 4 days

D 5 days

E 6 days

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