ACT Math · Probability and counting
In a race with 5 runners, in how many different ways can 1st, 2nd, and 3rd place be awarded?
In a race with 5 runners, in how many different ways can 1st, 2nd, and 3rd place be awarded?
Answer and explanation
Answer: H: 60
The order matters because 1st, 2nd, and 3rd place are different awards. There are choices for first place, then for second, then for third, so the total is , choice H. This is the permutation . Choice F () is the combination , which counts groups of three runners without regard to order. Choice G () is , which uses only two of the three positions. Choice J () is , which would let the same runner win all three places.
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