11th Class Mental Ability Numbers Question Bank Question - Number System

  • question_answer
    If the sum of a number and its square is 182, then what is the number?

    A) 15

    B) 26

    C) 28

    D) 13

    E) None of these

    Correct Answer: D

    Solution :

    Explanation Option (d) is correct. Let the number be x. Then, \[x+{{x}^{2}}=182\Rightarrow {{x}^{2}}+x-182=0\] \[\Rightarrow \left( x+14 \right)\text{ }\left( x-13 \right)=0\Rightarrow x=13.\]


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