X is thrice efficient than Y and X can do a piece of work in 50 days. – McqOptions

MCQOPTIONS

1.	X is thrice efficient than Y and X can do a piece of work in 50 days. Then find the time taken by X and Y together to complete the same work.
A.	37.5 days
B.	30 days
C.	25 days
D.	27.5 days
Answer» B. 30 days

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