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Question :
(a) (i) What do you understand by the term "operations research"?
(ii) Discuss three common operations research models.
(b) Self-service at the university canteen requires an average of 7 minutes per student whilst attended service has a rate of 6 minutes per student. Customers arrive randomly at the rate of 5 per hour. As the manager of the canteen, you are required to calculate the following operations statistics for each service:
(i) the average number of customers, (ii) the expected number of customers waiting for service, (iii) average time spent in the system, (iv) average time waiting for service.
Based on your results in (b), comment on the two services offered at the university canteen.
Maximize Z= 3x1 + 2X2 Subject to the constraints: X1+ X2 4 X1+ X2 2 X1, X2 0on..
A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i
Scope of operations research
Use Big M method to Maximize(Z)=3_(x_1 )+2_(x_2 ) Subject to 3_(x_1 )+?1.5?_(x_2 )=30 x_1+x_2=20 x_1=0 x_2=0
Method of Calculation of Mean Deviation a. Computation of Mean Deviation Individual Series : The process of computing mean deviation in case of individual series involves
Solve the following Linear Programming Problem using Simple method. Maximize Z= 3x1 + 2X2 Subject to the constraints: X1+ X2 = 4 X1 - X2 = 2 X1, X2 = 0
In this method variables beings studied are controlled by the investigator. In other the effect of one variable is observed while other relevant variables are held constant
undertake the proposed research investigation in accordance with the agreed specification and procedures
methodology of operation research
why does south africa regulate int''l trade
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