A company must purchase a critical piece of industrial equipment from one of two suppliers, A or B. The company€™s manufacturing engineer is using several criteria on which to evaluate the suppliers, one of which is system availability. Given the following mean time between failures (MTBF) and mean time to repair (MTTR) data, calculate the system availability for each supplier.

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Supplier A 150 15 Supplier B 140 12 MTBF (hours) MTTR (hours)