Multiple Choice Questions on The average of first 20 multiples of 12 is ........ for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

The average of first 20 multiples of 12 is ........

Quantitative Aptitude (RRB NTPC) Average
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     The average of first 20 multiples of 12 is:

    124

    Incorrect Answer

    120

    Incorrect Answer

    126

    Correct Answer

    130

    Incorrect Answer
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    Explanation:
    Required average=12x(1+2+3+4.....+20)/20
    =20x21x3/10
    =126

    By: Barka Mirza
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