Lilsavage93 Lilsavage93

21-11-2021
Mathematics

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There are 25 students in a class, 7 of them will be chosen to go on a field trip. How many ways can these students be chosen.

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Аноним Аноним

21-11-2021

Answer:

Step-by-step explanation:

order is not important so

25 ways to fill the first spot

24 ways to fill the second

23 ways to fill the third

...

19 ways to fill the 7th

25•24•23•22•21•20•19 = 2,422,728,000

which also equals 25! / (25 - 7)!

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