A and B can do a piece of work in 18 days ; B and C can do it in 24 da – McqOptions

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1.	A and B can do a piece of work in 18 days ; B and C can do it in 24 days; A and C can do it in 36 days. In how many days can they do it all working together?
A.	12
B.	13
C.	16
D.	26
Answer» D. 26

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