A can complete a piece of work in 40 days and B is 30% more efficient than A. In how many days will the work be completed, if both are working together?

A can complete a piece of work in 40 days and B is 30% more efficient

1.	A can complete a piece of work in 40 days and B is 30% more efficient than A. In how many days will the work be completed, if both are working together?
A.	600/23
B.	400/23
C.	500/23
D.	380/23
E.	None of these
Answer» C. 500/23

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A can complete a piece of work in 40 days and B is 30% more efficient than A. In how many days will the work be completed, if both are working together?

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