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A student has to answer 8 questions out of 12 questions in an examination 1

A student has to answer 8 questions out of 12 questions in an examination 1)How many choices has he? 2)How many choices has he,he is must answer the 1st four questions? 3)How many choices has he,if he must at least four out of 1st six questions?
Answer me plrsse
commented Mar 12, 2019 by ak6661668

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