3 years ago

Please help me, i dont get it :(

Mathematics

1 answer:

Leya [2.2K]3 years ago

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Answer: B, D, and E

Step-by-step explanation: 20% of 45 equals 9 D, D, and E all equal 9

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Since we have given that

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We need to find the number of different ways we can arrange their reindeer .

For this we will use "Permutation":

here, n = 5

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$^nP_r=\frac{n!}{(n-r)!}\\\\So,\\\\^5P_4=\frac{5!}{(5-4)!}\\\\^5P_4=120$

Hence, there are 120 different ways we can arrange reindeer.

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