A can do a work in 4.5 days and B in 5.5 days. If they work on it together, then in how many days will they be able to do the work?

A can do a work in 4.5 days and B in 5.5 days. If they work on it toge

1.	A can do a work in 4.5 days and B in 5.5 days. If they work on it together, then in how many days will they be able to do the work?
A.	99/40
B.	9/4
C.	90/44
D.	44/9
Answer» B. 9/4

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A can do a work in 4.5 days and B in 5.5 days. If they work on it together, then in how many days will they be able to do the work?

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