2. Questions Bank
  3. 7th Class
  4. Mathematics
  5. Comparing Quantities

7th Class Mathematics Comparing Quantities Question Bank Comparing Quantities

  • question_answer
    When a number is reduced by 5, it becomes 75% of itself. Find the number.  

    A)  20       

    B)  45

    C)  10                               

    D)  35       

    Correct Answer: A

    Solution :

    (a) Let number be\[x\] Then \[x-5=\frac{75}{100}\times x\]             \[\Rightarrow \]\[x-5=\frac{3x}{4}\]             \[\Rightarrow \]\[x-\frac{3x}{4}=5\Rightarrow \frac{x}{4}=5\Rightarrow x=20\]                  


You need to login to perform this action.
You will be redirected in 3 sec spinner