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MCQ

José is on a gameshow that involves a taste test. He gets to see a list of 15 different secret ingredients before tasting 3 dishes one after the other. The 3 dishes are all identical to each other except that each dish contains 1 of the 15 secret ingredients. He gets 60 seconds to identify what secret ingredient was in each dish. The permutation formula rnP{ }_{r}^{n} P can be used to find the number of unique ways to arrange the ingredients in the dishes. What are the appropriate values of n{n} and rr ?

Select all that apply :

n=15,r=3n=15, r=3

n=10,r=6n=10, r=6

n=60,r=3n=60, r=3

n=60,r=15n=60, r=15

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