Multiple Choice Questions on The average of first 80 natural numbers is ........ for Punjab Patwari Exam Preparation

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Multiple Choice Questions

The average of first 80 natural numbers is ........

Quantitative Aptitude (Pb Patwari) Average
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     The average of first 80 natural numbers is ?

    40

    Incorrect Answer

    41

    Incorrect Answer

    40.5

    Correct Answer

    142

    Incorrect Answer
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    Explanation:

    1st 80 natural numbers are:-

    1,2,3,4,5,6,7....................80

    The average of an A.P Series is given by (1st term + Last term)/2

    (1 + 80)/2 = 40.5 

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