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      Question

      In a class, the number of students studying English and

      Math is in the ratio 3:4. If 12 additional students join the Math group, the ratio of students studying English to those studying Math changes to 3:5. What was the initial number of students in the English group?
      A 20 Correct Answer Incorrect Answer
      B 22 Correct Answer Incorrect Answer
      C 28 Correct Answer Incorrect Answer
      D 30 Correct Answer Incorrect Answer
      E 36 Correct Answer Incorrect Answer

      Solution

      Initial ratio of the students studying English and Math = 3: 4 After joining of 12 students of math group ratio becomes = 3: 5 Student of English group remains unchanged, 5x-4x = 12 x = 12 students in English group = 3x = 36

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