SOLUTION: From the ten books that you´ve recently bought but not read, you plan to take four with you on vacation. How many different sets of four books can you take?
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Question 548287: From the ten books that you´ve recently bought but not read, you plan to take four with you on vacation. How many different sets of four books can you take? Answer by mathie123(224) (Show Source):
You can put this solution on YOUR website! Okay so we have a total of n=10 books and we want to choose 4 of them to bring with us. Order does not matter (it doesn't matter what order you picked the books, only that you picked them) so we are dealing with combinations . Therefore there are
10C4 different sets. This can be simplified using the combinations formula, but I will leave that part up to you:)
Let me know if you are still unsure.
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