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

  • question_answer If \[3\frac{1}{x}\times 3\frac{3}{4}=12\frac{1}{2},\]what is the value of 'x'?

    A)  \[1\]                                    

    B)  \[\frac{1}{3}\]                                  

    C) \[2\]                                    

    D)  \[3\]    

    Correct Answer: D

    Solution :

    \[3\frac{1}{x}\times 3\frac{3}{4}=12\frac{1}{2}\] \[\Rightarrow \] \[\left( \frac{3x+1}{x} \right)\times \frac{15}{4}=\frac{25}{2}\] \[\Rightarrow \] \[x=3\]

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