Railways Sample Paper RRB (Assistant Loco Pilot & Technician) Sample Test Paper-12

  • question_answer
    The average weight of 25 boys in a class is 43.25 kgs and that of the remaining 7 boys is 45.75 kgs. Find the average weight of all the boys in the class.

    A)  47.55 kgs                     

    B)  48 kgs

    C)  43.79 kgs         

    D)       49.25 kgs

    Correct Answer: C

    Solution :

     Required Average      \[=\left( \frac{43.25\,\,\,\,\,25+45.75\,\,\,\,\,7}{25+7} \right)\]      \[=\frac{1401.5}{32}=43.79\]


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