a e 6 13 Q.3 Consider a small project consisting of the following activities: Activity b c d f Immediately preceding activity a, b a, c a, b, c Duration (weeks) 12 5 4 16 (a) Draw the network diagrams (AOA and AON both) for this project and determine the critical path. What is the minimum completion time for the project? [07] (b) If it is found that some extra resources may be available so that activity c may be crashed by a maximum of 2 weeks, what will be its impact on the critical path(s) and the project completion time? [04] (contd. on page 2) -2- () If instead of single time estimates, we have the following three time estimates (to, tm, to) for each of the above activities from a through fin that order, then what will be probability that the project's completion will be delayed beyond 30 weeks? (Time estimate) (2,5,14) (3,12,21) (5,14,17) (2,5,8) (1,4,7) (6,15,30) [07]