1) Students are going through a 3-step process to obtain their ID cards. Each student will spend 2 minutes at the registration desk before going to one of the 3 cashiers to pay a fee for a card. After that they will visit one of 4 ID processing stations to have their picture taken and the ID card printed. Visits to the cashier and ID processing station take 10 and 20 minutes, respectively.

If the demand rate is 0.5 student/minute, which of the following conclusions can be drawn if resources are doubled at the ID processing stations?

A) The cashier station becomes the bottleneck

B) There will be no bottleneck in the process

C) The ID processing station becomes the bottleneck

D) Registration becomes the bottleneck

2) Using the same situation as in question 1 (above), how long does it take to process 20 students, assuming the system starts empty?

A) 100 minutes

B) 95 minutes

C) 127 minutes

D) 160 minutes

3) Among other products, C&A sells T-shirts for $15 each. Material costs are $2/shirt and fixed costs are $300/hour. Two workers are employed, each of which takes 2 minutes to make a shirt. Assume demand is unlimited. How will profit change per hour if one additional worker (who also takes 2 minutes to make a shirt) is brought in to make shirts? Wages are $15/hour.

A) No change

B) 81.3% decrease

C) 81.3% increase

D) Cannot be determined

4. There are 4 steps in the manufacturing process of a stuffed toy: cutting, stuffing, sealing and packaging. There are 2 employed each for cutting and stuffing but one each for sealing and packaging. The processing times of cutting, stuffing, sealing and packaging are 8,5,3 and 2 seconds, per toy. What is the capacity in toys per minute of the resourcs "stuffing"?

A) 12

B) 0.4

C) 0.2

D) 24