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7th Class Mathematics Data Handling Question Bank Data Handling

  • question_answer
    The given bar graph shows the result of annual examination in a school from class V to class X. What is the difference between average demand and average production of the five companies taken together?

    A)  1400                          

    B)  400                

    C)  280                

    D)         138

    Correct Answer: C

    Solution :

    Average demand of companies \[=\frac{1}{5}(3000+600+2500+1200+3300)=2120\]Average production of companies \[=\frac{1}{5}(1500+1800+1000+2700+2200)\] \[=\frac{9200}{5}=1840\] \[\therefore \] Required difference \[=2120-1840=280\]


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