A and B can do a piece of work in 5 days; B and C can do it in 7 days and A and C can do it in 4 days who among these will take least time if put to do it alone?

A and B can do a piece of work in 5 days; B and C can do it in 7 da

1.	A and B can do a piece of work in 5 days; B and C can do it in 7 days and A and C can do it in 4 days who among these will take least time if put to do it alone?
A.	A
B.	B
C.	C
D.	data inadequate
Answer» B. B

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A and B can do a piece of work in 5 days; B and C can do it in 7 days and A and C can do it in 4 days who among these will take least time if put to do it alone?

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