A, B and C can do a work in 6, 12 and 24 days respectively. In what time will they finish the work while working together?

A, B and C can do a work in 6, 12 and 24 days respectively. In what ti

1.	A, B and C can do a work in 6, 12 and 24 days respectively. In what time will they finish the work while working together?
A.	$$ 3 {3 over7} $$days
B.	$$ 2 {3 over7} $$days
C.	$$ 4 {3 over7} $$days
D.	$$ 3 {3 over5} $$days
Answer» B. $$ 2 {3 over7} $$days

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A, B and C can do a work in 6, 12 and 24 days respectively. In what time will they finish the work while working together?

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