Answer:
a. 50%
Step-by-step explanation:
Model P-4 requires 30 minutes of machine time.
A machine hour consists of 60 minutes
Calculating the machine time of Model P-4 in terms of percent of machine hour:
= (Model P-4 Machine time/Machine Hour)*100
= (30/60)*100
= 0.5 * 100
=50%
So, the percent of Model P-4 machine time in terms of a machine hour is 50%.