Multiple Choice Questions on The average marks of 20 students in a class is 65 It is found that the marks of two students misread........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The average marks of 20 students in a class is 65 It is found that the marks of two students misread...........

Quantitative Aptitude ( CCS) Average
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    The average marks of 20 students in a class is 65. It is found that the marks of two students misread 35 instead of 53 and 48 instead of 84. Find the change in average after correction?

    67

    Incorrect Answer

    67.7

    Correct Answer

    68

    Incorrect Answer

    68.7

    Incorrect Answer
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    Explanation:

    Solution: 
    35+48= 83
    53+84=137
    54 more will be add and it change on 20 students
    54/20 = 2.7
    65+2.7 = 67.7

    By: Pranav Gupta
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