SOLUTION: Each pass through a lumber plane shaves off .015 inch of thickness from a board. How many times must a board originally .875 inch thick, be run through the planer if a board of t

Question 779489: Each pass through a lumber plane shaves off .015 inch of thickness from a board. How many times must a board originally
.875 inch thick, be run through the planer if a board of thickness .74 inch is desired.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Let c = count of runs through the planer. Thickness removed for c runs is 0.015c.
Thickness of board if starting 0.875 inches thick is 0.875-0.015c. Wanting the resulting thickness of the board to be 0.74, then makes the statement:
and you would make a sensible judgement in case c is not a whole number.
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