Type 1 workers are 2.5 times as efficient as type 2 workers, 12 type-1 – McqOptions

MCQOPTIONS

1.	Type 1 workers are 2.5 times as efficient as type 2 workers, 12 type-1 workers can complete a task in 10 days what time would be taken by 4 type-1 and 15 type-2 workers to do this work?
A.	12
B.	19
C.	17
D.	20
Answer» B. 19

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