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Question

Akhil and Nikhil together can complete a work in 9 days while Nikhil alone takes 18 days to complete 40% of the work. If the efficiency of Sachin is 25% more than that of Akhil, then find the time taken by Sachin alone to complete the whole work.

A 9 days

B 6 days

C 7 days

D 5 days

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