7th Class Mathematics Comparing Quantities Question Bank Comparing Quantities

  • question_answer 20) Which of the following statements is true?

    A)  \[\sqrt{324}+90=60%\] of \[60+20\]

    B) \[5{}^{1}/{}_{2}\] of \[240=150%\] of 880

    C)  \[35%\]of\[30=10.0\]

    D)  100 metres is 20% of \[1\,\,km\]

    Correct Answer: B

    Solution :

    (b) \[5\frac{1}{2}\] of \[12240=5\frac{1}{2}\times 240\] ('of means into i.e. multiplication) \[=\frac{11}{2}\times 240=1320;\] Also \[150%\,\,880=\frac{\overset{3}{\mathop{\cancel{150}}}\,}{\cancel{\underset{2}{\mathop{100}}\,}}\times 880=1320\]

adversite



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