2. Questions Bank
  3. 10th Class
  4. Mathematics
  5. Pair of Linear Equations in Two Variables

10th Class Mathematics Pair of Linear Equations in Two Variables Question Bank Case Based MCQs - Pair of Linear Equations in Two Variables

  • question_answer
    Fare from Rajiv Chowk to Karol Bagh is

    A) Rs 6

    B) Rs 8

    C) Rs 10

    D) Rs 2

    Correct Answer: B

    Solution :

    We have, pair of linear equations as
    \[2x+3y=46\]                            ...(i)
    \[3x+5y=74\]                            ...(ii)
    Multiply the first equation by 5 and second equation by 3.
    \[10x\text{ }+\text{ }15y\text{ }=\text{ }230\]              ...(iii)
    \[9x+15y=222\]           ...(iv)
    Subtract the Eqs. (iv) for (iii)
    x=8


You need to login to perform this action.
You will be redirected in 3 sec spinner