A person bought two chairs for Rs. 2,400 and sold the first at a profit of 25% and second at a loss of 10%. If he sold the first at 20% loss and second at 30% profit, he would get Rs. 300 more. The difference of the cost price of the chairs was
1). Rs. 848
2). Rs. 860
3). Rs. 842
4). Rs. 852

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• Consider the following code fragment
  void foo(int x, int y)
  {
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  y+=x;
  }
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  }
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  (B) 5 and 12
  (C) 5 and 20
  (D) 12 and 20
  
  

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