The following pie-charts shows the number of students studying in different separtments of an institutes during the acedemic years 2019 and 2020. The total number of students was 2000 and 2400, respectively, in academic years 2019 and 2020.
What is the ratio of the number of students studying science in the year 2019 to that in the year 2020?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 15 : 19
Total students in the year 2019 = 2000
Total students in the year 2020 = 2400
Students studying science in 2019 = (18/100) × 2000 = 360
Students studying science in 2020 = (19/100) × 2400 = 456
Ratio = 360 : 456 = 15 : 19