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OpenStudy (anonymous):
How many ways can 10 items be taken seven at a time, if order does not matter?
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OpenStudy (anonymous):
this is a combination problem.. u can choose 7 items from 10 in 10C7 ways=120 ways
OpenStudy (anonymous):
@Lalafuhsho , u got it?
OpenStudy (anonymous):
Hmm. I do not really understand on how to get that answer. I thought combinations in this situation would have made it be 10*9*8*7*6*5*4 then the answer. I don't see how to get 120 /:
OpenStudy (anonymous):
no, divide it by 7!
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