Suppose a group of 30 identical machines is monitored for 6 months, and without PM the number of breakdowns in each mont

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Suppose A Group Of 30 Identical Machines Is Monitored For 6 Months And Without Pm The Number Of Breakdowns In Each Mont 1 (66.54 KiB) Viewed 17 times

Suppose a group of 30 identical machines is monitored for 6 months, and without PM the number of breakdowns in each month is as follows 2022/05030 ide 3 4 5 Months of operation 1 2 before breakdown, n 6 No. of breakdowns, b 3 5 5 4 3 10 This indicates that longest time a machine runs before the breaking down is 6 months, and that, for example, 5 machines ran 2 months before they broke down. Cost of repairing the machine after breakdown is Rs 1000 (CB), Where as cost of PM on a machine is Rs 200 (Cp). PM does not eliminate breakdown. Calculate (1) What is the monthly cost of breakdowns? (2) If PM used, how often should it be done? [51