(a)[8]
Use the network diagram in Fig. 1 and Table 2 in the Insert.
- Finish the network diagram at nodes 3 and 4. [4]
- State which activities lie on the critical path. [1]
- State the shortest time needed to complete the opening of the new café. [1]
- Calculate the free float for Activity F. [2]
(b)[12]
Use your answers to 2(a) and any other information. Discuss whether PY’s directors ought to be confident that the café in city X will be open in time for the summer season.