How many hours will it take to complete grading operation

Reference no: EM13263960

A motor grader requires two passes at 2 miles per hour, two passes at 3 miles per hour, and one pass at 4 miles per hour to accomplish the work; job efficiency is 0.80. How many hours will it take to complete the grading operation for the 2-mile portion of the road? Provide a rationale for your answer.

Reference no: EM13263960

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