A and B can do a piece of work in 12 days. B and C can do it in 15 days. A and C can do the same piece of work in 20 days. In how many days can A, B and C each finish the same work independently ?

A and B can do a piece of work in 12 days. B and C can do it in 15

1.	A and B can do a piece of work in 12 days. B and C can do it in 15 days. A and C can do the same piece of work in 20 days. In how many days can A, B and C each finish the same work independently ?
A.	30 days, 20 days, 60 days
B.	40 days, 10 days, 30 days
C.	10 days, 30 days, 40 days
D.	None of the above
Answer» B. 40 days, 10 days, 30 days

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A and B can do a piece of work in 12 days. B and C can do it in 15 days. A and C can do the same piece of work in 20 days. In how many days can A, B and C each finish the same work independently ?

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