A and B can finish a piece of work in 30 days, B and C can finish it i – McqOptions

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1.	A and B can finish a piece of work in 30 days, B and C can finish it in 15 days, C and A in 10 days. Time taken by them together to do this work is?
A.	5 days
B.	2(1/2) days
C.	7(1/2) days
D.	10 days
Answer» E.

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