In OS compare uniprogramming and multiprogramming, Please show how to calculate the results, in other words, explain how to get the results

JOB1 JOB2 JOB3

Type of job Heavy compute Heavy I/O Heavy I/O

Duration 5 min. 15 min. 10 min.

Memory required 50M 100 M 75 M

Need disk? No No Yes

Need terminal No Yes No

Need printer? No No Yes

System memory: 250 Meg

Results: Processor use Memory use Disk use Printer use Elapsed time Throughput rate Mean resp, time Uniprogramming 20% 33% 33% 33% 30 min 6jobs/hr 18 min Multiprogramming 40% 67% 67% 67% 15 mn 12 jobs/hr 10 min can calculate 27