Answer:
About 90 minutes
Explanation:
Three-credit course shall mean a three hour class each week. Three hours = [tex]\times[/tex] 60 minutes = 180 minutes.
Since it is provided that there will be two classes each week, the duration of each class shall be = [tex]\frac{180}{2} = 90[/tex] minutes.
With this the three-credit course condition shall be fulfilled.
