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      Question

      In a college, 20% of the students are ineligible to vote.

      Among the eligible voters, 45% are girls. During the election, one-third of the eligible girl voters and four-elevenths of the eligible boy voters participated in the voting. What is the ratio of the number of boys to girls who cast their vote in the college election?
      A 2:5 Correct Answer Incorrect Answer
      B 5:4 Correct Answer Incorrect Answer
      C 4:3 Correct Answer Incorrect Answer
      D 3:7 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the number of students in the city be '100n'

      Number of students eligible for voting = 0.8 X 100n = '80n'

      Number of eligible girls voters = 0.45 X 80n = '36n'

      Number of eligible boys voters = 80n - 36n = '44n'

      Number of boys who vote = (4/11) X 44n = '16n'

      Number of girls who vote = (1/3) X 36n = '12n'

      Required ratio = 16n:12n = 4:3

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