7th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-16

  • question_answer
    If \[a+b+c=14\] and \[{{a}^{2}}+{{b}^{2}}+{{c}^{2}}=96,\] then \[\left( ab+bc+ca \right)=?\]

    A)  51                               

    B)  55

    C)  50       

    D)  65

    E)  None of these

    Correct Answer: C

    Solution :

     Not Available               


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