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    Question

    The average marks of the students of a class in a

    particular exam is 80. If 5 students whose average marks in that exam is 40 are excluded, the average marks of the remaining students will be 90. Find the number of students who wrote the exam.
    A 25 Correct Answer Incorrect Answer
    B 20 Correct Answer Incorrect Answer
    C 15 Correct Answer Incorrect Answer
    D 35 Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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