Question

2. Alice opened two food factories, delivering lunch to students in USC and UCLA. One factory is located at Westwood, and another at Koreatown. Each factory can deliver at most 50 lunchboxes every day. The table below summarizes the profit of a lunchbo:x per student from two factories to two universities. USC UCLA Westwood 3.5$5 Koreatown $5.5 $2 Alice wants to know how to deliver lunch from two factorics according to the number of (i) On a day during the winter break, there are 10 orders from USC and 25 orders from (i) On a regular day in the quarter, there are 60 orders from USC and 40 orders from orders o OUSC and OOLA. Can you nelp ner using linear programmin8 UCLA. Whats the best plan of delivery? UCLA, whats the best plan of delivery? i) On a day during the final week, there are 80 orders from USC and 60 orders from UCLA. So not every student can get the lunchbox. Those who dont get the lunchbox become angry, and will probably not order food from Alices factories. A student from USC who does not get the lunchbox accounts for a loss of $1, and that from UCLA for a loss of S0.5. Whats the best plan of delivery?

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Answer #1

In the given problem, We will use the excel solver to find the profit maximization.

We will enter the data into excel. Raw data sheet will be as shown below -

Abhishek Rai _ LP Solver Excel Insert Page Layout Formulas Data Review View Help Tell me what you want to do AutoSum A Cut 48 Conditional Format as Cell Fomatting Table Styles Sort & Find & Filter, Select Insert Delete Format Copy . $ , % , Clear в ㅣ u w, ク, E ΞΞ 트트 E Merge & Center , Paste Fonmat Painter Cells Editing Number Clipboard E15 Profit Per Unit USC UCLA 3.5 5.5 Koreatown Optimal Profit LP Solution USC UCLA Koreatown Sum 12 13 10 25 Demand 15 Profit Formula for Profit Calculation SUMPRODUCT(D4:E5,D10:E11) 17 20 21 23 1821 ④ + 100% Display Settings 圈1回凹ー ENG US 2:41 PM 21-Jan-19 Ready :r ^ x Type here to search

Formula applied is mentioned in Table.

Here our objective will be to maximize the profit.

Variable cells will be D10:E11.

And Constraints will be sum of orders from UCS and UCLA should be equal to Demand.

Solver will look as mentioned below -

LP Solver Excel Abhishek Rai File Home Insert Page Layout Formulas Data Review View Help Tell me what you want to do Show Queries Clear E Flash Fill From Table Remove Dupli Solver Parameters ,espply Advanced Get ExternNen |집 Sort Filter Tet to Query ▼Le Recent Sources | All shREdit Links Columns Data Validat Data- Get & Transform Connections Sort & Filter Data Set Objective SDS16 D16 v/ 丘 || =SUMPRODUCT(D10:E11,D4E5) Max OMin Oyalue of: By Changing Variable Cells: SDS10 SES11 Subject to the Constraints: SDS10 SES11-integer Profit Per Unit USC UCLA 3.5 5.5 Koreatown SDS12 SES12 SDS14:SES14 Optimal Profit LP Solution USC UCLA Koreatown Reset All 12 13 Sum Load/save Demand 10 25 凶Make Unconstrained Variables Non-Negative Select a Solving Method Simplex LP Options 16 17 Profit Formula for Profit Calculation SUMPRODUCT(D4:E5,D10:E11) Solving Method Select the GRG Nonlinear engine for Solver Problems that are smooth nonlinear. Select the LP Simplex engine for linear Solver Problems, and select the Evolutionary engine for Solrer problems that are non-smooth 20 23 18 2 Display Settings 囲回凹- ENG US 2:45 PM 21-Jan-19 Type here to search :r ^ x

Final Result will be as mentioned below -

Abhishek Rai困- LP Solver Excel Insert Page Layout Formulas Data Review View Help Tell me what you want to do Σ AutoSum A Cut ECopy 48 Conditional Format as Cell Formatting Table Styles Sort & Find & Filter Select Insert Delete Format 트트 E Merge & Center , $ , % , Clear Paste B 1 u , tt . ?» , ㄧ Fonmat Painter Editing Cells Number Clipboard 丘 11 =SUMPRODUCT(D10:E11,D4E5) D16 Profit Per Unit USC UCLA 3.5 5.5 Koreatown Optimal Profit LP Solution USC UCLA 25 10 Koreatown 10 Sum 12 13 10 25 Demand 180 16 17 Profit Formula for Profit Calculation SUMPRODUCT(D4:E5,D10:E11) 20 21 23 1821 ④ + 100% Display Settings 圈1回凹ー ENG 2:47 PM * US 21-Jan-19 Ready Type here to search

ii)

In this problem we will add one more constraints. It will that Total Delivered units will be less that or equal to Max available capacity of each factory. All the other processes will be same.

Final Result will be as mentioned below -

LP Solver Excel Abhishek Rai困- File Home Insert Page Layout Formulas Review View Help Tell me what you want to do . DFrom Quenes OPConnections . T Ty,Reapply ueryRecent Sourcesardt Un Group . +-| H: Data Analysis 姐Ungroup , --| 2+Solver Show Queries Clear Flash Fill Consolidat ps 睁명 2.DataAnalyss E E From Table H Remove Duplicates ,Rem ove Duplicates Relationships dlun roup. Get Externa New Ted toData Validation Sort Filter What-If Forecast Advanced Columns | Analysis . Sheet- Subtotal Outline Get & Transform Connections Sort & Filter Data Tools Analyze D16 v/ 丘 || =SUMPRODUCT(D10:E11,D4E5) Profit Per Unit USC UCLA 3.5 5.5 Koreatown Optimal Profit LP Solution UCLATotal Delivered 10 USC Max Available Capacity Koreatown 12 13 Sum Demand 16 17 Profit Formula for Profit Calculation 510 SUMPRODUCT(D4:E5,D10:E11) Neelu Yadav RE: leave plan Done Regards, Neelu YADAV SENIOR MANAGER ERP Mob: +91 9810663055 DIMTS Ltd., 1sl 20 21 23 1821 ④ Ready Display Settings 翌回凹- + 100% ENG 3:05 PM Type here to search

iii)

In this problem, order from each locations are greater than 50. Hence we will calculate the optimal solution from each location with 50 orders and delivery more than 100 will not be possible. Result will be as mentioned below -

Abhishek Rai困- LP Solver Excel Review View Help Tell me what you want to do File Home Insert Page Layout Formulas 睁명 Group . +-| H: Data Analysis 姐Ungroup , --| 2+Solver 2.DataAnalyss . DFrom Quenes OPConnections . T Ty,Reapply ueryRecent Sourcesardt Un Consolidat ps Clear Flash Fill Show Queries E E H Remove Duplicates ,Rem ove Duplicates dlun roup. Relationships From Table Ted toData Validation | Analysis . Sheet- Subtotal Outline What-If Forecast ZI Sort Filter Get Externa New Advanced Columns Analyze Data Tools Connections Sort & Filter Get & Transform v/ 丘 || =SUMPRODUCT(D10:E11,D4E5) D16 Profit Per Unit USC UCLA 3.5 5.5 Koreatown Optimal Profit LP Solution USC UCLA Total Available 50<= 50 < Koreatown 100 100 Sum 12 13 Demand 15 525 Profit Formula for Profit Calculation SUMPRODUCT(D4:E5,D10:E11) 17 20 21 Sheet1 (3) 1& 2 + 100% Display Settings 圈1回凹ー 3:12 PM 21-Jan-19 Ready ENG US :r ^ x Type here to search

From above, it is clear that 30 orders from USC and 10 orders from UCLA will not be get delivered.

Total Loss = 30*1 + 10*0.5 = $35

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