GATE EE 2015 Set 1 — Question 8
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General Aptitude → Quantitative Aptitude → Data Interpretation (Bar, Pie, Graphs, Tables)
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Question
The pie chart below has the breakup of the number of students from different departments in an engineering college for the year 2012. The proportion of male to female students in each department is 5:4. There are 40 males in Electrical Engineering. What is the difference between the numbers of female students in the Civil department and the female students in the Mechanical department?
Correct answer
32 to 32
Solution
1.In Electrical Engineering (EE), the ratio of Male (M) to Female (F) is 5:4. Given M = 40.
2.Let the common ratio be . . Females in EE = .
3.Total students in EE = .
4.EE represents 20% of the total students (). So, .
5.Civil department has 30% of total students: . Females in Civil = .
6.Mechanical department has 10% of total students: . Females in Mechanical = .
7.Difference = .
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