A and B working together; can do a piece of work in 4 1hours. B and C working together 2

A and B working together; can do a piece of work in 4 1hours. B and C

1.	A and B working together; can do a piece of work in 4 1hours. B and C working together 2
A.	3 hours
B.	2 hours
C.	2 5 hours
D.	3 25 hours
Answer» C. 2 5 hours

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A and B working together; can do a piece of work in 4 1hours. B and C working together 2

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