Bill has 7 students in his basketball team. Only 5 can play at once. How many different groups of 5 students can have on the court at a time?
Hint: it's easier to think of the reverse of this questions - how many different groups of 2 students can sit on the bench.
Tuesday, September 8, 2009
5th - 8th grade
Labels:
5th grade,
6th grade,
7th grade,
8th grade,
combinations,
permutations,
probability
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