The topsoil in Problem 29 is to be removed with a bulldozer. The estimated productivity is 30 bcy per hour and it will take 2.5 hours to mobilize the bulldozer. The total ownership and operation cost of the bulldozer is $47.12 per hour and the cost of an operator is $26.88 per hour. Determine the number of hours and the cost to strip the topsoil.
What will be an ideal response?
Determine the number of hours and cost as follows:
Hours = 110 bcy / 30 bcy per hr + 2.5 hr = 6.2 hr
Equipment cost = 6.2 hr × $47.12/hr = $292
Labor cost = 6.2 hr × $26.88/hr = $167
Total cost = $292 + $167 = $459
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