Total number of passed students in 2013 and 2014 together is what percentage more/less than number of failed students in 2012 and 2015 together?

Explanation

Total number of passed students in 2013 and 2014 together = 75 + 120 = 195 Total number of failed students in 2012 and 2015 together = (200 − 90) + (150 − 110) = 110 + 140 = 250 Required percentage = 250−195 250 × 100 = 22%