A and B can do a piece of work in 10 days. B and C in 15 days C and A – McqOptions

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1.	A and B can do a piece of work in 10 days. B and C in 15 days C and A in 30 days. In how many days can they do it all working together?
A.	8 days
B.	6 days
C.	11 days
D.	10 days
Answer» E.

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