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Ratio,Proportion, Percentages and Discounting Q.5

0. If 75% of the students in a school are boys and the number of girls is 420, then the number of boys is

  • Option : C
  • Explanation : Ratio between boys: girls = 75%: 25% = 3 : 1
    Hence, number of boys = 3 × 420 = 1,260
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