If A and B can do a piece of work in 10 days, B and C, C and A can do the same work in 18 days and 9 days respectively. Then, in how many days will A, B and C finish the work?

If A and B can do a piece of work in 10 days, B and C, C and A can do

1.	If A and B can do a piece of work in 10 days, B and C, C and A can do the same work in 18 days and 9 days respectively. Then, in how many days will A, B and C finish the work?
A.	7.5 days
B.	10.5 days
C.	9.5 days
D.	8.5 days
Answer» B. 10.5 days

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If A and B can do a piece of work in 10 days, B and C, C and A can do the same work in 18 days and 9 days respectively. Then, in how many days will A, B and C finish the work?

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