Halpert Corporation has been in operation for one year. The only product they produce is a specific bicycle chain. They want to make sure they are effectively utilizing the machinery they use to create this product. Below is the information concerning the machine that produces the bicycle chain:

Actual run time this week 2,500
Minutes Machine time available per week 3,125
Minutes Actual run rate this week 2.4 Units per minute
Ideal run rate 3.2 Units per minute
Defect-free output this week 5,100 Units
Total output this week (including defects) 6,000 Units

Halpert’s quality rate was:

a. 0.42
b. 0.75
c. 0.80
d. 0.85