A and B working separately can complete a piece of work in 9 and 12 d – McqOptions

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1.	A and B working separately can complete a piece of work in 9 and 12 days respectively. If they work alternatively starting from A in how many days will the work be completed?
A.	10.25 days
B.	11.5 days
C.	12.75 days
D.	9 days
Answer» B. 11.5 days

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