GATE EC 2020 Set 1 — Question 10
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General Aptitude → Quantitative Aptitude → Data Interpretation (Bar, Pie, Graphs, Tables)
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Question
The following figure shows the data of students enrolled in 5 years (2014 to 2018) for two schools and . During this period, the ratio of the average number of students enrolled in school to the average of the difference of the number of students enrolled in schools and is ______.
Correct answer
(B) 23: 8
Solution
Step 1: Calculate the total number of students enrolled in school over the 5-year period from the bar chart.
Sum (in thousands).
Average .Step 2: Calculate the absolute difference in enrollment between school and school for each year.
Sum of differences = .
Average of difference = .Step 4: Find the ratio of the average number of students in school to the average of the difference.
Ratio = .Therefore, the correct option is (B).
Sum (in thousands).
Average .Step 2: Calculate the absolute difference in enrollment between school and school for each year.
- 2014:
- 2015:
- 2016:
- 2017:
- 2018:
Sum of differences = .
Average of difference = .Step 4: Find the ratio of the average number of students in school to the average of the difference.
Ratio = .Therefore, the correct option is (B).
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