Six attractions

How many opportunities do you have if you want to complete ten rides on the fair, but there are only six attractions?

Correct answer:

x =  3003

Step-by-step explanation:

C10(15)=(1015)=10!(1510)!15!=543211514131211=3003 n=6 k=10  x=(kn+k1)=(106+101)=3003

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Showing 1 comment:
Math student
Is there a way to phrase this question that makes it clear that order doesn't matter?  There may be some difference between going on the Zipper and then the Tilt-a-Whirl, vs. going on the same rides in the opposite order.

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