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  3. 8th Class
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  5. Linear Equations in One Variable

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

  • question_answer
    Twelve years hence Ravi?s age will be nine times his age twelve years ago. find the present age of Ravi?s

    A)  12 years                      

    B)  15 years

    C)  18 years         

    D)  20 years

    Correct Answer: B

    Solution :

    (b): Let age on today = x \[\Rightarrow (x+12)=9(x-12)\] \[\Rightarrow 12+108=8x\] \[\Rightarrow x=\frac{120}{8}=15\]        


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