The Speedy Pizza Palace is revamping its order-processing and pizza-making

procedures. In order to deliver fresh pizza fast, six elements must be completed.

The management of Speedy Pizza expects an efficiency of 90%.

Activity	Description	Precedence	Time (min)
A	Receive order	-	2
B	Shape dough	A	1
C	Prepare toppings	A	2
D	Assemble pizza	B, C	3
E	Bake pizza	D	3
F	Deliver pizza	E	3

1. Construct a precedence diagram for the process. ( 3 marks )
2. Compute the desired cycle time given that the demand of pizza is 120 per night (5:00 pm to 1:00 am). ( 3 marks )
3. What is the theoretical number of workstations? ( 4 marks )
4. Balance the line. ( 8 marks )
5. Comment on the answer in (d). ( 2 marks )