Answer Happy

Cotton Room is planning to launch a new crochet product online. The following table depicts the project activities that must be completed (in weeks) before the new product can enter the market. Activity A B с D E F Description Research and develop product Design marketing campaign Determine crochet patterns Set up online selling platforms Set up plant for production Purchase necessary materials (a) Obtain the following: Predecessors • The arrow diagram for this project. • The total float and free float for each activity. • The critical path and the project duration. • The total cost for this project. A A B C E Duration Cost (RM) 4 5 4 3 1 4 400 800 520 600 255 600

(b) Cotton Room's project manager, Ray, believes that for the new product to succeed, it must be available for sale before the competitor's product hits the market. Ray knows that the competitor's product is scheduled to hit the market within 11 weeks from now. Thus, he reckons that Cotton Room must introduce the new product within 10 weeks and Ray has also prepared the following information table: Activity No. of weeks that can be reduced Cost (RM) of each weeks reduced A - B C 4 2 200 150 D E F 2 - 2 225 Obtain the following: • The activities that had their durations reduced and by how many weeks. • The new total cost to launch the new product. (CO3, C3) 175 [11 marks]