with detailed solution based on reference typewritten reference : https://drive.google.com/drive/mobile/folders/1E3-uBXdEj44YaQV9KExcbnn2DgZpCKia

1. The university registration committee is scheduling classes for Second Semester 2022-2023. There are thirty (30) different time periods during which classes at a university can be scheduled in a week. If there are 245 different classes to be scheduled. what is the minimum number of rooms that will be needed to schedule classes in such a way that classes scheduled in the same time period will use dierent rooms? 2. At least how many numbers must be chosen from {1. 2. 3. 4. 13. 14} to ensure that 2 of these numbers must add up to 15? 3. Five hundred eightysix freshman students registered in the upcoming Booster Vaccination Drive in the University Hospital. If 126 individuals can be accommodated by the hearth service per day, what is the minimum number of days needed for the vaccination site to be open to cater freshman students