A alone can do a piece of work in 10 days, A and B together can do the same piece of work in 20/3 days. A, B and C together can do the same piece of work in 40/7 days. In how many days can B and C together do the same piece of work?

A alone can do a piece of work in 10 days, A and B together can do the

1.	A alone can do a piece of work in 10 days, A and B together can do the same piece of work in 20/3 days. A, B and C together can do the same piece of work in 40/7 days. In how many days can B and C together do the same piece of work?
A.	\(\frac{{44}}{7}\)
B.	\(\frac{{40}}{3}\)
C.	\(\frac{{44}}{3}\)
D.	\(\frac{{20}}{3}\)
Answer» C. \(\frac{{44}}{3}\)

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A alone can do a piece of work in 10 days, A and B together can do the same piece of work in 20/3 days. A, B and C together can do the same piece of work in 40/7 days. In how many days can B and C together do the same piece of work?

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