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Discussion :: Average

  1. The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class

    2. A.

    47.55 kg
    B.

    48 kg
    C.

    48 .55 kg
    D.

    49.25 kg

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    Answer : Option C

    Explanation :

    Required average = \( [\frac { 50.25 *16+45.15*8 } { 16+8 }]\)

                       

                                  = \([\frac { 804+36.120 } { 24 } ]\)

                       

                                  =   \( \frac { 1165.20 } { 2 4} \)

                                 

                                  =  48.55

     

     

     

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