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purple21
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An instructor gives an exam with twelve questions. Students are allowed to choose any ten questions to answer/
there are 66 different choices of ten questions
suppose five questions require proof and seven do not.
how many groups of ten questions contain at most three that require proof?
there are 66 different choices of ten questions
suppose five questions require proof and seven do not.
how many groups of ten questions contain at most three that require proof?