A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job?

A and B can finish a piece of work in 20 days .B and C in 30 days and

1.	A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job?
A.	48
B.	34(2/7)
C.	44
D.	45
Answer» B. 34(2/7)

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