A Production Line Is to Be Designed for a Job

Multiple Choice

A production line is to be designed for a job with four tasks. The task times are 2.4 minutes, 1.4 minutes, 0.9 minutes, and 1.7 minutes. After line balancing, the longest possible assigned task time is ________ and the shortest possible assigned task time is ________ minutes.

A) 1.8; 1.4
B) 1.6; 0.9
C) 6.4; 2.4
D) 2.4; 0.9
E) none of these