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Question

A, B and C can do a piece of work in 6 days, 12 days and 24 days respectively. In what time will they all together do it?

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Solution

A can do a piece of work in = 6 days
B can do a piece of work in = 12 days
C can do a piece of work in = 24 days
A's 1 day work =16
B's 1 day work =112
C's 1 day work =124
(A+B+C)'s 1 day work =16+112+124
=4+2+124=724
(A + B + C) can do the work in =247 days
=337 days


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