Answer:
The answer is 3 stations.
Step-by-step explanation:
Minimum cycle time = 1.2 minutes.
Maximum cycle time = 0.2+0.4+0.2+0.4+1.2+1.2+1.0 = 4.6 minutes.
Calculated CT = OT ÷ input = 480 ÷ 240 = 2 minutes.
N = 4.6 ÷ 2 = 2.3 minutes.
Maximum number of stations required would be 3.