If 1 X or 2 Y or 3 Z can do a piece of work in 44 days. In how many days 1 X, 1 Y and 1 Z, working together, can do the same work, where X, Y and Z are different capacity machines?

If 1 X or 2 Y or 3 Z can do a piece of work in 44 days. In how many da

1.	If 1 X or 2 Y or 3 Z can do a piece of work in 44 days. In how many days 1 X, 1 Y and 1 Z, working together, can do the same work, where X, Y and Z are different capacity machines?
A.	33 days
B.	26 days
C.	24 days
D.	21 days
Answer» D. 21 days

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If 1 X or 2 Y or 3 Z can do a piece of work in 44 days. In how many days 1 X, 1 Y and 1 Z, working together, can do the same work, where X, Y and Z are different capacity machines?

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