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      Question

      There are 700 students in a college. 60% are boys. Among

      the boys and girls, 50% and 45% respectively are interested in dance. Find the number of students who are not interested in dance.
      A 242 Correct Answer Incorrect Answer
      B 374 Correct Answer Incorrect Answer
      C 364 Correct Answer Incorrect Answer
      D 345 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Total number of boys = 700 Γ— 0.6 = 420

      Total number of girls = 700 - 420 = 280

      So, number of boys who do not like dance = 420 Γ— 0.5 = 210

      So, number of girls who do not like dance = 280 Γ— 0.55 = 154

      So, required number of students = 210 + 154 = 364

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