A machine in a factory has an error rate of 4 parts per 100. The machine normally runs 24 hours a day and produces 40 parts per hour. Yesterday the machine was shut down for 9 hours for maintenance.
How many error-free parts did it produce yesterday?
600 | |
576 | |
345.6 | |
36 |
14 | |
33 | |
13 | |
27 |
0.22 inches | |
0.45 inches | |
1.56 inches | |
3.12 inches |