8th Class Mathematics Linear Equation in One Variable Question Bank Linear Equations in One Variable

  • question_answer If \[\frac{2}{3}\] of a number is 20 less than the original number, what is the original number?                            

    A)  \[60\]                  

    B)                                         \[40\]                  

    C)                         \[80\]                                  

    D)                         \[120\]                

    Correct Answer: A

    Solution :

    Let the number be 'x'. \[\frac{2}{3}x=x-20\]                      \[\Rightarrow \]  \[x-\frac{2}{3}x=20\]                                                 \[\Rightarrow \] \[x=60\]


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