Question

An elevator in a manufacturing plant carries exactly 400 kilograms of material. There are three kinds of material packaged in boxes that arrive for a ride on the elevator. These materials and their distributions of time between arrivals are as follows: 1. Material Weight (kilograms) 200 100 Interarrival Time (minutes) 5 +2 (uniform) 6 (constant) P(2) 0.33 50 P(3) 0.67 It takes the elevator I minute to go up to the second floor, 2 minutes to unload, and 1 minute to return to the first floor. The elevator does not leave the first floor unless it has a full load. Simulate I hour of operation of the system. What is the average transit time for a box of material A (time from its arrival until it is unloaded)? What is the average waiting time for a box of material B? How many boxes of material C made the trip in 1 hour?

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Answer 1

v e navL v e) Mの 4 200 1 00 S 2 (un form !nte Y arr.valt. me. PYD b. Com uIqt. ve R ASsi-Snovりナ. 0.2 3-4 4- 02 3 4 1 4 4-

Moterial- B 1100 kg/box Βοχ 12 1 8 Pmob 01-33 0 33 0 33 3チー00 2 o 67 0

Гле. me 6 92 clockime 4

ro af boxes d Noof boxer 콩 9 3.66 m.,め// Per box. No of boxes & β TO