A Transfer Machine Has Six Stations That Function As Follows In

A transfer machine has six stations that function as follows:
A transfer machine has six stations that function as follows: 
In

In addition, transfer time = 0.18 min. Average downtime per occurrence = 8.0 min. A total of 20,000 parts must be processed through the transfer machine. Determine
(a) Proportion downtime,
(b) Average actual production rate, and
(c) How many hours of operation are required to produce the 20,000 parts?

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