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7th Class Mathematics Simple Equations Question Bank Linear Equation in one Variable

  • question_answer
    A number exceeds itself by 20 when added by 10% of itself. The number is

    A)  300                             

    B)  400          

    C)  200        

    D)  500

    Correct Answer: C

    Solution :

    (c) Let number be x, then \[x+\frac{10}{100}\times x=x+20\] \[\Rightarrow \frac{x}{10}=20\Rightarrow x=200\]                       


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