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  3. 8th Class
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  5. Data Handling

8th Class Mathematics Data Handling Question Bank Data Handling

  • question_answer
    Data collected in a survey shows that 40% of the buyers interested in buying a particular brand of toothpaste. The central angle of the sector of the pie chart representing this information is:

    A)  \[{{120}^{{}^\circ }}\]                                  

    B)  \[{{150}^{{}^\circ }}\]           

    C)  \[{{144}^{{}^\circ }}\]   

    D)  \[{{40}^{{}^\circ }}\]

    Correct Answer: C

    Solution :

    (c): \[100%\cong {{360}^{{}^\circ }}c\] \[\therefore 1%\cong {{3.6}^{{}^\circ }}c\] \[\therefore 40%\cong {{3.6}^{{}^\circ }}\times {{40}^{{}^\circ }}c={{144}^{{}^\circ }}.\]


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