Step 3: Calculate Float in all tasks – Backward Pass Task 1, 4 days Task 2, 5 days Task 3, 3 days Task 4, 7 days Task 5, 4 days 14 18 9 14 4 7 7 14 For all tasks on Critical Path (Task1, Task 3, Task 4, Task 5), EF = LF ES = LS Thus, float (slack) for tasks on Critical Path = LF – EF = 0 Float for Task 2 = LF – EF = 14 – 9 = 5 days 0 4