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There are 12 questions on an examination, and each student must answer 8 questions including at least 4 of the first 5 questions. How many different combinations of questions could a student choose to answer?

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2 answers
  1. 10

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    2. 👎
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    4. 🚩
  2. 5C4x7C4=175
    5C5x7C3=35

    175+35=210
    There are 210 different combinations.

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