A can do a piece of work in 7 days of 9 hours each and B can do it in – McqOptions

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1.	A can do a piece of work in 7 days of 9 hours each and B can do it in 6 days of 7 hours each. How long will they take to do it, working together 8*(2/5) hours a day?
A.	3 days
B.	4 days
C.	5 days
D.	None of these
Answer» B. 4 days

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