please answer the second question.

[Question 1] A science teacher decides to book a private science lab outside the college for a fixed time at the rate of 50 OMR per hour. The teacher plans to engage students in educational activities within that time. The PERT times for the educational activities are as follows, where a is optimistic, m is most likely and b is pessimistic. All times are in minutes and all activities are on the critical path. The team of teachers reach the lab by 9 am in the morning and start the educational activities. They have to complete all activities as part of the curriculum. For how much time should the school book the science park and why? [6 points) Activity a mb 101217 B 25 30 36 12 16 22 3038 51 A D E 10 12 16 [Questions 1-4] OMBS society is planning to conduct a research poster exhibition. The event will be held in the CEPS ground floor lobby where students will present their posters on Oman logistics strategy to visitors. [Question 4] Write quality checklist to ensure a high quality poster presentation. (4 points)