Though it has been shown in the list that the total no. of holidays is 67, but we have to take at most 65. But I think the total no. of actual holidays in the list is 62. Because, we have to attend the school on the dates 23. 01.13, 26.01.13, 09.05.13, 15.08.13 and any two days of 14.01.13, 17.09.13 and 26.09.13. So how it is 65 days?