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7th Class Mathematics Comparing Quantities Question Bank Comparing Quantities

  • question_answer
    If \[3\frac{1}{4}%\] of a number is 0.13 what will be 400% of it?

    A) \[\frac{4}{13}\]                         

    B) \[13.0\]

    C) \[16.0\] 

    D) \[12.4\]

    Correct Answer: C

    Solution :

    (c) Let the number be\[x\]. \[3\frac{1}{4}%\] of \[x=0.13\Rightarrow \frac{13}{4}%\] of\[x=0.13\] \[\Rightarrow \]\[\frac{13}{400}x=0.13\] \[x=\frac{0.13\times 400}{13}=\frac{400}{100}=4\] \[\therefore \]\[400%\] of \[4=\frac{400}{100}\times 4=16.0\]                    


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