demand = 35 unit per minute, my question is what is Idle time?

D A O I - E Background Layout Theme Transition Workers and their Tasks Round 1 Round 2 Worker 1: Tracing Body, 15 seconds per unit Worker 1: Tracing Body, 5 seconds per unit Worker 2: Tracing Wheels, 4 seconds per unit Worker 2: Tracing Wheels, 4 seconds per unit Worker 3: Cutting Body, 8 seconds per unit Worker 3: Cutting Body, 7 seconds per unit Worker 4: Cutting Wheels, 5 Seconds per unit Worker 4: Cutting Wheels, 4 Seconds per unit Worker 5: Assembling parts, 5 Seconds per unit Worker 5: Assembling parts, 10 Seconds per unit Total units made in 5 mins: 18 Total units made in 5 mins: 57 Labor content = 37 secs per unit Labor content= 30 secs per unit .616 minutes per unit .5 minutes per unit add speaker notes