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  3. 11th Class
  4. Mathematics

11th Class Mathematics Sample Paper Maths Olympiad Model Paper-5

  • question_answer
    If \[{}^{43}{{C}_{r-6}}={}^{43}{{C}_{3r+1}}\], then the value of r is

    A)  6                                

    B)  8

    C)  10                               

    D)  12

    E)  None of these

    Correct Answer: D

    Solution :

     Not Available


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