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7th Class Mathematics Sample Paper Sample Paper - Maths - 1

  • question_answer
    The value of \[3{{x}^{2}}- 5x +3\], when x = 1 is

    A) 1         

    B)        0

    C) -1                    

    D)        11

    Correct Answer: A

    Solution :

    Sol. Putting x=1 in given equation we get \[3{{x}^{2}}-5x+3=3{{\left( 1 \right)}^{2}}-5\left( 1 \right)+3\] \[=\,\,3-5+3\] = 1     


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