Question: Gibson's Bodywork does automotive collision work. An insurance agency has determined that the standard time to replace a fender is 2.5 hours (I.e.,"standard output" = 0.4 fenders per hour) and is willing to pay Gibson $50 per hour for labor party. Gibson pays its workers $35 per hour. Suppose Gibson's workers take 4 hours to replace a fender.
A. Gibson labor hour efficiency is ?
B. Gibson's labor hour efficiency has to be ----% for Gibson to break even on the job.