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

  • question_answer
    Solve: \[1.32y+0.02y=1.19+y\]

    A)  \[-\frac{7}{2}\]                                

    B)                         \[3\frac{1}{2}\]               

    C)                         \[\frac{7}{4}\]                                  

    D)                         \[-3\frac{1}{4}\]

    Correct Answer: B

    Solution :

    \[1.32\,y+\,0.02y=1.19+y\] \[\Rightarrow \]               \[1.34\,y=1.19+y\] \[\Rightarrow \]               \[1.34-\,y=1.19+y\] \[\Rightarrow \]               \[1.34-\,y=1.19\] \[\Rightarrow \]               \[y=\frac{1.19}{0.34}=\frac{119}{34}=\frac{7}{2}\] \[\therefore \]  \[y=3\frac{1}{2}\]


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