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    Question

    Abhishek's marks in Mathematics were incorrectly entered

    as 93 instead of 63. Due to this, the average marks of the class in Mathematics got increased by 0.5. How many students were there in the class?
    A 45 Correct Answer Incorrect Answer
    B 55 Correct Answer Incorrect Answer
    C 60 Correct Answer Incorrect Answer
    D 50 Correct Answer Incorrect Answer

    Solution

    Increase in total marks = 93 - 63 β‡’ Increase in total marks = 30 Number of students = Increase in total marks / Increase in average β‡’ Number of students = 30 / 0.5 β‡’ Number of students = 60

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