SOLUTION: If there are 7 periods in a school day, and a typical student takes 5 classes, how many different time patterns are possible for the student?
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Question 115153: If there are 7 periods in a school day, and a typical student takes 5 classes, how many different time patterns are possible for the student? Answer by checkley71(8403) (Show Source):
You can put this solution on YOUR website! the first subject can be in 1 of 7 periods, the seond can be in 1 of 6 periods etc.
5*7+4*6+3*5+2*4*1*3=35+24+15+8+3=85 different time patterns are possible.
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