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grigory [225]
3 years ago
9

Twenty dash three people purchase raffle tickets. Three winning tickets are selected at random. If first prize is ​$1000​, secon

d prize is ​$500​, and third prize is ​$100​, in how many different ways can the prizes be​ awarded?
Mathematics
1 answer:
Y_Kistochka [10]3 years ago
5 0

Answer: 10626

Step-by-step explanation:

Given : The total number of people purchase raffle tickets=23

The total number of prizes = 3

Since , order matters here , so we use Permutations.

The permutation of n things taken r at a time is given by :-

^nP_r=\dfrac{n!}{(n-r)!}

Then, the number of ways the prizes can be distributed :-

^{23}P_{3}=\dfrac{23!}{(23-3)!}\\\\=\dfrac{23\times22\times21\times20!}{20!}=10626

Hence, the prizes can be distributed in 10626 ways.

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