Consider the following tasks, times, and predecessors for an assembly of set-top cable converter boxes: TASK ELEMENT TIME (MINUTES) ELEMENT PREDECESSOR A 1 - B 1 A C 2 B D 1 B E 3 C, D F 1 A G 1 F H 2 G I 1 E, H Given a cycle time of four minutes, develop an assembly line layout. Use the longest task time rule and the largest number of following tasks as a secondary criterion. What is the efficiency of your layout, assuming the 4-minute cycle time? A. 75% B. 81% C. 85% D. 90%

Consider the following tasks, times, and predecessors for an assembly of set-top cable converter boxes: Given a cycle time of four minutes, develop an assembly line layout. Use the longest task time rule and the largest number of following tasks as a secondary criterion. What is the efficiency of your layout, assuming the 4-minute cycle time? A. 75% B. 81% C. 85% D. 90%