A and B together can do a piece of work in 20 days. B and C together can do the same work in 25 days. C and A together can do the same work in 15 days. In how many days A alone can do the same work?

A and B together can do a piece of work in 20 days. B and C together c

1.	A and B together can do a piece of work in 20 days. B and C together can do the same work in 25 days. C and A together can do the same work in 15 days. In how many days A alone can do the same work?
A.	\(\frac{{1200}}{{23}}\)
B.	\(\frac{{1200}}{{17}}\)
C.	\(\frac{{600}}{{23}}\)
D.	\(\frac{{600}}{{17}}\)
Answer» D. \(\frac{{600}}{{17}}\)

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A and B together can do a piece of work in 20 days. B and C together can do the same work in 25 days. C and A together can do the same work in 15 days. In how many days A alone can do the same work?

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