XAT 2019 — QA & DI Question 25
Answer the next 3 questions based on the information given below.
The break-up of the students in a university by subject major is given in the polar pie-chart. The bar chart shows the number of students who major in physics by geographic location.
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12% of all students are from Chennai. What is the largest possible percentage of economics students that can be from Chennai, rounded oï¬ to the nearest integer?
Answer & solution
- A
69%
- B
71%
- C
75%
73%
- E
77%
Consider the solution to previous question.
Total number of students = 1250
12% of these are from Chennai = 12% of 1250 = 125 + 25 = 150
Out of these 150 students 40 are definitely majoring in Physics.
∴ Maximum students from Chennai who can major in Economics = 150 – 40 = 110.
Total number of students in Economics = 12% of 1250 = 150.
∴ Highest possible percentage of Economics students that can be from Chennai = 110/150 × 100% = 73.33% ≈ 73%.
Hence, option (d).