The following pie - chart show the number of the numberof students studying in different department of an institute during the academic year 2019 and 2020. The Total number of students was 2000 and 2400 in academic years 2019 and 2020, respectively.
What is the percentage increase or decrease in the number of students of Engineering in 2020 as compared to2019 ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 10.77%
Solution :
the number of students of Engineering in 2019 = 13 % of 2000 = 260
the number of students of Engineering in 2020 = 12% of 2400 = 288
The increase of engineering students in 2020 as compared to 2019 = 288 - 260 = 28
Required percentage = (28/260) × 100 = 10.769 ≈ 10.77%.