MathematicsThe cost of a ball pen is Rs 5 less than half of the cost of a fountain pen. Write this statement as a linear equation in two variables. 



The cost of a ball pen is Rs 5 less than half of the cost of a fountain pen. Write this statement as a linear equation in two variables.
 


  1. A
    x-2y=10
          
  2. B
    2x-y=10
          
  3. C
    x+2y=10
          
  4. D
    2x+y=10
     

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    Solution:

    the cost of the fountain pen is and cost of ball pen is
     that the cost of a ball pen is 5 less than half the cost of a fountain pen.

     the required equation is So, option 1 is correct.
     
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