A1 7 min

A2 13 min

A3 12 min

A4 30 min

A5 5 min

There are three servers

S1, S2, S3

S1= A1 and A2 7+13=20 min

S2= A3 12 min

S3= A4 and A5 30+5=35 min

IU1: Bottleneck = S3 = 1/35= .029

IU2: Utilization depend upon bottleneck that is .029

Question no 2

A)

Beds = 120

Stays= 10 days

I=R*T

1200= R*10

R=120

B)

First day spending=50*120=6000

Additional day spending=30*1080=32400

Total revenue= 38400

Stay days changes from 10 to 5 day

So,

Flow rate will be 240

First day spending=50*240=12000

Additional day spending=30*960=28800

Total revenue= 40800

Change in revenue = 40800-38400=2400 per day

Question 4

DMV1:

400*1%, fail 4, 396*15%, fail 59.4, 366.6*30%, fail 100.98, pass 235.62

Pass 235.62 per day

DMV2:

Activity Capacity per hour Demand per hour Implied utilization

A.I 4/5*60=48 400/8=50 50/48=1.04

W.E 2/3*60=40 396/8=49.5 49.5/40=1.24

R.E 15/20*60=45 336.6/8=42.075 42.075/45=.935

W.E is bottleneck as implied utilization is 1.24

DMV3:

Answer “190”