The total number of students appeared from school X in 2016, 2017 and 2019 is
approximately what per cent more than the total number of students passed from
school Y in 2018 and 2020?

The total number of students that appeared from school X in 2016, 2017 and 2019 are 250+275+300 = 825

The number of students that passed from School Y in 2018 and 2020 is 254+276= 530

The difference between the two is 825-530 = 295

We need to find the percentage of this value compared to the total number of students who passed from school Y in 2018 and 2020, giving the answer to be $$\frac{295}{530}\times\ 100\approx\ 55.66\%$$

This is closest to option D, which shows a value of 55.7%

Therefore, Option D is the correct answer.