The given bar graph represents the number of students who appeared in the board examinations in session 2017-18 and 2018-19. Study the graph and answer the question that follows.

What percentage is the total number of students who appeared in 2017-18 is less than the total number of students who appeared in 2018-19? (Correct to one decimal place)

16.7%

Total number of students appeared in examinations in 2017-18

= 25 + 40 + 53 + 32

= 150

Total number of students appeared in examinations in 2018-19

= 30 + 48 + 64 + 38

= 180

Required percentage = \(\frac{180-150}{180 }\) × 100

= \(\frac{30}{180 }\) × 100

= 16.67%

= 16.7%  (Correct to one decimal place)