7th Class Mathematics Comparing Quantities Question Bank Comparing Quantities

  • question_answer
    \[\frac{25%\text{ }of\text{ }50%\text{ }of\text{ }100%}{25\,\,of100\times 50%\,\,of100}\]is equal ???'

    A)  \[0.0001%\]               

    B)  \[0.1%\]         

    C)        \[0.01%\]         

    D)         \[1%\]            

    Correct Answer: A

    Solution :

    We have, \[\frac{25%\,of\,50%\,of\,100%}{25\,of\,100\,\times 50%\,of\,100}\] \[=\left( \frac{25}{100}\times \frac{50}{100}\times \frac{100}{100} \right)\]             \[+\left( 25\times 100\times \frac{50}{100}\times 100 \right)\] \[=\frac{1}{4}\times \frac{1}{2}\times 1\times \frac{1}{25\times 100\times 50}=\frac{1}{10000}\times \frac{1}{100}\] \[=0.0001%\]


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