URGENT PLEASE SOLVE FAST PLEASE

Your university is now open for offline classes and you want to complete your advising. You want to choose courses like first day will have the maximum course-load and last day will have the minimum. The courses' name, start and ending times are respectively (csel10, 9, 12), (phy091, 1,3), (mat110,5,7), (eng101, 2, 4), (dev103, 11, 13), (cse101,3,9), (cse221,1, 4) 1. How many courses will you have on the first day? 2. If you want to attend courses only 2 days from the above list, how many courses will you be able to do at best