1. Calculate the minimum required conveyor speed for this example. 8 hour shift, 45 minutes downtime, 90% performance, 3100 units per shift and each unit is 33" long.

a.23 ft/min

b.21 ft/min

c. 22 ft/min

d. 24 ft /min

2.Given the takt time or R value of .405, balance the following line. The efficiency of this line is closest to:

Operation	Time Std.
1	.455
2	.813
3	.233
4	.081
5	.945

Group of answer choices

a.81%

b.83%

c. 82%

d. 80%

please help

Thank you!!