Question: QUESTION THREE a) Distinguish between CPM and PERT, citing appropriate examples. (5 marks) b) Lessos Ltd Co. was given a contract in the repair of

QUESTION THREE a) Distinguish between CPM and PERT, citing appropriate examples. (5 marks) b) Lessos Ltd Co. was given a contract in the repair of Lang'ata South road. Activities from A \( L \) with their respective timings were given as in the following table: -Immediate Predecessor Required (i) Construct a PERT network form the above information and determine the critical path, critical activities and project duration. (ii) Assuming that the schedule allows 40 days to complete the whole project, calculate the probability of completion by the scheduled date.

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