X and Y can do a piece of work in 10 days, Y and Z in 12 days and Z an – McqOptions

MCQOPTIONS

1.	X and Y can do a piece of work in 10 days, Y and Z in 12 days and Z and X in 15 days. In how many days can Z alone do the work?
A.	40
B.	24
C.	18
D.	36
Answer» B. 24

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