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  • 25-04-2017
  • Mathematics
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how many ways can you choose 3 out of 5 books if order doesn't matter

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Sxerks Sxerks
  • 25-04-2017
Since order doesn't matter, we can simply use the combination notation cited as:
[tex]^{n}C_r[/tex], where n represents the number of objects and r represents the number of subsets.

If we were to choose 3 books from a pack of 5, we can choose them in [tex]^{5}C_3[/tex] ways, which is 10 ways.
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