It's not the fault of the student if he/she fails, because the year has an ONLY 365 days.
Typical academic year for a student.
Sundays 52, Sundays in a year, which are rest days. Balance 313 days.
Summer holidays 50 where weather is very hot and difficult to study. Balance 263 days.
8 hours daily sleep means 122 days. Balance 141 days.
1 hour for daily playing (good for health) means 15 days. Balance 126 days.
Two hours daily 1 for food & other delicacies (chew properly & eat) means 30 days. Balance 96 days.
1 hour for talking (man is a social animal) means 15 days. Balance 81 days.
Exam days per year at least 35 days. Balance 46 days.
Quarterly, Half yearly and festival holidays) 40 days. Balance 6 days.
For sickness at least 3 days. Balance 3 days.
Movies and functions at least 2 days. Balance 1 day.
That 1 day is your Birthday.
So,from where will a student get time for studying?