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

  • question_answer
    Find the number which when added to the numerator and denominator of the ratio 11 : 23, makes it equal to the ratio 4 : 7?

    A)  5

    B)  10             

    C)  15                               

    D)  20

    Correct Answer: A

    Solution :

    (a): \[\frac{11+n}{23+n}=\frac{4}{7}\] \[\Rightarrow 77+7n=92+4n\] \[\Rightarrow 3n=15\] \[n=5\] 


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