2. Sample Papers
  3. 11th Class
  4. Mathematics

11th Class Mathematics Sample Paper Mathematics Sample Paper-4

  • question_answer
    Total number of positive integral solutions of \[15<{{x}_{1}}+{{x}_{2}}+{{x}_{3}}\le 20,\] is equal to

    A)  1245               

    B)  685          

    C)  1025               

    D)  None of these

    Correct Answer: B

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