Question

The standard time for completing a job on a machine is 10 minutes. Number of machines available is 5, each machine is available for 300 hours/month, and average machine utilization is 80%. The maximum number of jobs that can be produced in a month is ................. (in integer).

• A. 7200
• B. 6800
• C. 8000
• D. 7500

Hint:

To calculate the maximum number of jobs, convert the job time into hours, multiply by machine hours available, and adjust for machine utilization.

Answer 1

The Correct Option is A

- Total available machine hours per month = 5 machines \(\times\) 300 hours/machine = 1500 hours.
- Given that the machine utilization is 80%, the effective machine hours = \(1500 \times 0.8 = 1200\) hours.
- Each job takes 10 minutes, which is \(\frac{10}{60} = \frac{1}{6}\) hours.
- The number of jobs that can be produced in a month is: \[ \text{Number of jobs} = \frac{1200}{\frac{1}{6}} = 1200 \times 6 = 7200. \]