A manager wants to assign tasks to workstations as efficiently as possible, and achieve an hourly output of 4 units. The department uses a working time of 56 minutes per hour. Assign the tasks shown in the accompanying precedence diagram (times are in minutes) to workstations using the following rules:

a(3)--> b(2)-->c(4)

d(7)-->e(4)---> h(9)-->I(5)

f(5)-->6(g)

a. In order of most following tasks. Tiebreaker: greatest positional weight.

Work Station	Tasks
I	(Click to select)IE, HA, GD, B, CF, A, G
II	(Click to select)D, B, CDIF, A, GE, H
III	(Click to select)E, HF, A, GD, B, CIH
IV	(Click to select)F, A, GIE, HHB,E

b. In order of greatest positional weight.

Work Station	Tasks
I	(Click to select)G, HF, GC, DD, CF, D
II	(Click to select)G, HB, CF, A, GG, A, BE, H
III	(Click to select)AC, ED, C, FB,EF, G
IV	(Click to select)B,EH, IAHG

c. What is the efficiency? (Round your answer to 2 decimal places. Omit the "%" sign in your response.) Efficiency %