A and B can do a piece of work in 12 days; B and C can do it in 15 days and C and A can do it in 20 days. A alone can do the work in:

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 and C and A can do it in 20 days. A alone can do the work in:
A.	30 days
B.	29 days
C.	28 days
D.	27 days
Answer» B. 29 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 and C and A can do it in 20 days. A alone can do the work in:

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