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spayn [35]
4 years ago
14

A test consists of 25 problems and students are told to answer any 15 of these questions. In how many different ways can they ch

oose the 15 questions?
Mathematics
1 answer:
JulsSmile [24]4 years ago
6 0
The number of combinations of 25 problems taken 15 at a time is:
25C15=\frac{25!}{15!10!}=3,268,760
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