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    Question

    An examinee is required to answer 7 questions out of 14

    questions, which are divided into two groups each containing 7 questions. He is not permitted to answer more than four questions from any group. In how many ways can he answer seven questions?
    A 1225 Correct Answer Incorrect Answer
    B 480 Correct Answer Incorrect Answer
    C 520 Correct Answer Incorrect Answer
    D 490 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

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