8th Class Mathematics Comparing Quantities Question Bank Comparing Queantities

  • question_answer What percent of the given figure is shaded?

    A)  \[90\frac{1}{2}%\]                   

    B)  \[87\frac{1}{4}%\]        

    C)  \[87\frac{1}{2}%\]

    D)  90%

    Correct Answer: C

    Solution :

    (c): Out of 8 parts, seven is shaded \[\Rightarrow \frac{7}{8}\times 100%=87\frac{1}{2}%\] Mind of a mathematician Mathematical Ingenuity: 1 = 100% \[1/8=12\frac{1}{2}%\] \[\therefore 7/8=1-\frac{1}{8}=87\frac{1}{2}%\] This calculation should happen automatically to a thoughtful student

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