Exercise 10-5 Working Backwards from Labor Variances [LO10-2] The auto repair shop of Quality Motor Company uses standards to control the labor time and labor cost in the shop. The standard labor cost for a motor tune-up is given below: Motor tune-up Standard Hours 2.50 Standard Rate $29.00 Standard Cost $72.50 The record showing the time spent in the shop last week on motor tune-ups has been misplaced. However, the shop supervisor recalls that 54 tune-ups were completed during the week, and the controller recalls the following variance data relating to tune-ups: Labor rate variance Labor spending variance $ 120 F $ 170 U Required: 1. Determine the number of actual labor-hours spent on tune-ups during the week. 2. Determine the actual hourly rate of pay for tune-ups last week. (Round your answer to 2 decimal places.) 1. Actual labor hours 372.5 hours 2. Actual hourly rate per hour