Q1) Given the following data, find the critical path and the minimum project completion time.
Activity; te(expected activity time); Preceding Activity
1-2; 3; -
2-4; 8; 1-2
2-3; 6; 1-2
2-5; 2; 1-2
4-6; 13; 2-4, 2-3
3-5; 11; 2-3
5-6; 8; 2-5, 3-5
6-7; 6; 4-6, 5-6