Refer to the bar graph below and answer the question that follows.

What is the difference between the number of students enrolled in Institute A in 2015 and 2017 and that in Institute B in 2016, 2018 and 2019?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 40.
Total students in Institute A (2015 & 2017) = 150 + 350 = 500
Total students in Institute B (2016, 2018 & 2019) = 160 + 50 + 250 = 460
Difference = 500 - 460 = 40
Therefore, the difference between the number of students enrolled in Institute A in 2015 and 2017 and that in Institute B in 2016, 2018, and 2019 is 40.