27. Given that cost of failure replacement is 3 times compared to the cost of common preventive replacement of Rs 100 per item in a system of 1,000 items and the following data, suggest the strategy between failure replacement and common preventive replacement that should be followed for cost reduction.

Transcribed Image Text:

Week : No. of items surviving at the beginning of the week 0 1 2 3 4 100 5 90 90 75 40 15 0