If A, B and C can respectively complete a piece of work in 20, 24 and 36 days respectively, how many days will they take to complete the work. If they work together?

If A, B and C can respectively complete a piece of work in 20, 24 and

1.	If A, B and C can respectively complete a piece of work in 20, 24 and 36 days respectively, how many days will they take to complete the work. If they work together?
A.	\(8\frac{{16}}{{43}}\)
B.	\(6\frac{1}{4}\)
C.	\(9\frac{1}{4}\)
D.	\(7\frac{{19}}{{20}}\)
Answer» B. \(6\frac{1}{4}\)

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If A, B and C can respectively complete a piece of work in 20, 24 and 36 days respectively, how many days will they take to complete the work. If they work together?

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