8th Class Mathematics Algebraic Expressions Question Bank Algebra

  • question_answer
    What is the total number of candidates at an examination, if 31% fail and the number of those who passed exceeds the number of those who failed by 247?

    A) 605                             

    B) 560

    C) 650                 

    D) None of these

    Correct Answer: C

    Solution :

    Failed candidates = 31% Passed candidates = 69% We have \[3(a+b+c)\] \[2(abc)\] \[x=\frac{\sqrt{5}+\sqrt{3}}{\sqrt{5}-\sqrt{3}}\]   


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