Develop a solution for the following line balancing problem, allowing a cycle time of 5 minutes.

1. Draw the precedence diagram for the set of tasks.
2. Calculate the theoretical minimum number of workstations.
3. Balance this line by assigning tasks to stations.
4. Does the solution have the minimum number of stations? Explain.
5. How much idle time is there, summed over all workstations?
6. What is the efficiency of this line?

Work Task	Task Time (seconds)	Task Predecessor(s)
A	70	-
B	60	A
C	120	B
D	60	-
E	240	C,D
F	100	A
G	190	E,F