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Introduction to Data Interpretation

Direction: Shown below is the multiple bar diagram depicting the changes in the student’s strength of a college in four faculties from 1990–91 to 1992– 93. (Scale 1 cm = 100)

  1. How much percent was the increase in science students in 1992–93 over 1990–91?
    1. 50%
    2. 150%
    3. 66
      2
      %
      3
    4. 75%
Correct Option: A

According to given bar graph , we have
Number of science students in 1992–93 = 600
Number of science students in 1990–91 = 400
Total Increase = 600 - 400 = 200

Required percentage increase =
Total Increase
× 100
Number of science students in 1990–91

Required percentage increase =
200
× 100 = 50%
400



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