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  3. 8th Class
  4. Mathematics
  5. Comparing Quantities

8th Class Mathematics Comparing Quantities Question Bank Commercial Mathematics

  • question_answer
    45% of 90 = x% of 81, value of x is

    A) 405                 

    B)          500

    C) 50                   

    D)          28.5

    Correct Answer: C

    Solution :

    45% of 90 = x% of 81 \[\frac{45}{100}\times 90=\frac{x}{100}\times 81\] \[\Rightarrow \,\,\,x=\frac{45\times 90}{81}\] \[\Rightarrow \,\,\,x=50\]


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