The average is 130 parts per hour.
Step-by-step explanation:
Given,
Parts being made at factory = 521
521 parts are made in = 4 hours
Average parts per hour = [tex]\frac{Parts\ made}{No.\ of\ hours}\\[/tex]
Average parts per hour = [tex]\frac{521}{4}[/tex]
Average parts per hour = 130.25 parts
Rounding off to nearest whole number
Average parts per hour = 130 parts
The average is 130 parts per hour.
Keywords: average, division
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