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  5. Pair of Linear Equations in Two Variables

10th Class Mathematics Pair of Linear Equations in Two Variables Question Bank Linear Equation in two Variables

  • question_answer
    A father said to his son, 'the sum of our present ages is twice my age 12 years ago and nine years hence, the sum of our ages will be thrice my age 14 years ago?. What is his son's present age?

    A)  16 years                      

    B)  12 years    

    C)  14 years                      

    D)  6 years

    Correct Answer: B

    Solution :

    (b): x = son?s age; y = father?s age \[x+y=2(y-12)\]??????????(1) \[(x+9)+(y+9)=3(y-14)\]??????.(2) Solve to get x.  


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