Acompany is designing a product layout for a new product. it plans to use this production line eight hours a day in order to meet projected demand of 480 units per day. the tasks necessary to produce this product:

task time (sec) immediate predecessor

u 30 none

v 30 u

w 6 u

x 12 w

y 54 x

z 30 v, y

if the company desires that output rate equal demand, what is the desired cycle time (in seconds)?

(a) 162

(b) 72

(c) 54

(d) 12

(e) 60