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      Question

      Find the ratio of the number of female of tribe Raba and

      Dimasa. Answer the following questions based on the information given below: There are two tribes (Raba and Dimasa) in Mizoram. Total population of tribe Raba is 4800. Number of males of tribe Raba is 40% more than the number of females of tribe Raba. Total population of tribe Dimasa is 20% more than the population of tribe Raba. Ratio of number of males to the number of females of tribe Dimasa is 5:7.
      A 22:45 Correct Answer Incorrect Answer
      B 23:41 Correct Answer Incorrect Answer
      C 21:34 Correct Answer Incorrect Answer
      D 25:42 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Let the number of females of tribe Raba be x. Number of males of tribe Raba = 1.4x Total population = 4800 => x + 1.4x = 4800 => x = 2000 Number of males of tribe Raba = 1.4 × 2000 = 2800 Number of females of tribe Raba = 2000 Total population of tribe Dimasa = 4800 × 1.2 = 5760 Number of males of tribe Dimasa = (5/12) × 5760 = 2400 Number of females of tribe Dimasa = (7/12) × 5760 = 3360 Required ratio = 2000 : 3360 = 25:42

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