Problema Solution
Each pass through a lumber plane shaves off 0.015 inch of thickness from a board. How many times must a board, originally 0.879 inch thick, be run through the planer if a board of thickness 0.774 inch is desired?
Answer provided by our tutors
0.879 - 0.774 = 0.105
a total thickness of 0.105 inches needs to be shaved off at 0.015 inch at a time
0.105/0.015 = 7
the board must be run through the planer seven times