The schedule below was developed for a construction project. A contract was entered into to deliver the project within 12 days. A clause in the contract stated that the project contractor will be penalised R5,000 per day for each day that the project was delayed and R1,000 per day should the project be successfully concluded earlier than the 12 stipulated days. Answer the questions that follow and be sure to adhere to all technical requirements for diagrams and calculations required.

1. Create an activity on node (AON) network diagram for the schedule above.

2. Find the critical path using slack for the schedule above.

ACTIVITY A B C D E LU F G H 1 K L M N 0 DURATION (Days) 1 3 1 2 3 2 3 2 5 SO 2 PREDECESSOR A D D C B H G EJ F J L KM