9 excavators working 10 hrs. a day remove 2500 cubic feet of earth in – McqOptions

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1.	9 excavators working 10 hrs. a day remove 2500 cubic feet of earth in 3 days. How many excavators working 6 hrs. a day are required to remove 5000 cube feet of earth in 2 days?
A.	55
B.	50
C.	45
D.	40
Answer» D. 40

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