A, B and C can complete a piece of work in 24, 6 and 12 days respectively. Working together, they will complete the same work in:

 A, B and C can complete a piece of work in 24, 6 and 12 days respectively. Working together, they will complete the same work in:

A). 6 3/7 days

B). 5 3/7 days

C). 4 3/7 days

D). 3 3/7 days

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