Question 2 (a) A manufacturing company produces two products I and Il. The produ

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Question 2 (a) A manufacturing company produces two products I and Il. The production of both products is achieved in two separate work centres A and B. Each item of product I requires 5 labour-hours in work centre A and 4 labour-hours in work centre B. Each item of product Il on the other hand, requires 3 labour-hours in work centre A and 6 labour-hours in work centre B. The company has a regular capacity of 560 labour-hours per day for work centre A and 800 labour-hours per day for work centre B. The cost per labour-hour is $80 and $50 for work centres A and B respectively (in a ratio of 8:5). In addition, the unit value of goods-in-process during production is $35 per item of product I and $25 for that of product The company considers it undesirable to have more than $7,250 of total goods-in-process per day. It is also estimated that for the coming planning period, not more than 100 and 150 items of products and respectively can be sold per day. The company wishes to achieve the following goals in an order of descending priority. P1: Limit the total lock-up capital of goods-in-process for each day to $7,250. P2: Limit the production of products I and II to the sales forecast of 100 and 150 items per, respectively. Avoid any underutilization of regular capacity of labour-hours in centres A and B Ps: P4: Avoid any overutilization above the regular capacity of labour-hours in centres A and B. Formulate the above problem as a goal programming model which can determine how many items of each product should be produced per day. (You do not have to solve the model) (17 marks) (b) Use the revised simplex tableaus to solve the following goal programming model: Subject to Xxdi -d-800 3x2+ d,"-d,' = 1400 x1,x,di,di, d2,d2,ds,ds0 (16 marks)

Explanation / Answer

Southwest airlines are one of the top most airlines which provide good service to the people and best output of receiving.eIt was started in 1971 only with 3 aircrafts but now it exceeds the services with more and more aircrafts.These airlines are mainly because to save the time and cost of the people.The main mission of airlines was dedication to highest quality of customer service.No,there no kind of business have for the southwest airlines because this runs on the successful path with more and more turn over yearly.

This airlines was succeeded by the reason of on time performamce,good receiving,providing comfortable and safe journey without any kind of complaints from the customers.There are highly efficient,motivated and well trained staff in it.Southwest airlines have very low amount of fares which makes people to show more interest.This airlines show big turnaround at the gate which always notify the environment.

Every business have bottom and top lines.Bottom line is reffered that company's income after all the expenses have been deducted from revenues.so southwest airlines doesn't show anykind of impacts on the total revenues that which was collected.Because airlines have the more turnover.

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