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8th Class Mathematics Algebraic Expressions Question Bank Algebra

  • question_answer
    There were only two candidates who participated in an election. One contestant got 62% votes and was elected by a margin of 144 votes. The total number of votes were

    A) 500                             

    B) 600

    C) 700                             

    D) 800

    Correct Answer: B

    Solution :

    Elected candidate got \[ab+bc+ca=26,\] votes. Other candidate got \[{{a}^{3}}+{{b}^{3}}+{{c}^{3}}-3abc\] votes. We have, \[x:\frac{x-a}{b+c}+\frac{x-b}{c+a}+\frac{x-c}{a+b}=3\] \[1/2(a+b+c)\] \[a+b+c\]


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