Question

Rent'R Cars is a multisite car rental company in the city. It is trying out a new "return the car to the location most convenient for you" policy to improve customer service. But this means that the company has to constantly move cars around the city to maintain required levels of vehicle availability. The supply and demand for economy cars, and the total cost of moving these vehicles between sites, are shown below.

From\To		D		E		F		G		Supply
A			$15		$16		$14		$6	70
B			8		7		13		6	35
C			14		9		15		12	100
Demand			55		60		50		40	205\205

a. Find the solution that minimizes moving costs using Microsoft Excel. (Leave no cells blank - be certain to enter "0" wherever required.)

	From/To D E F G Supply Candidate solution A B C Total shipped Cost A B C Total costs

Answer 1

The Excel output is:

	D	E	F	G	Supply
A	15	16	14	6	70
B	8	7	13	6	35
C	14	9	15	12	100
Demand	55	60	50	40	205
Total shipped
	D	E	F	G		Supply
A	0	0	30	40	70	70
B	35	0	0	0	35	35
C	20	60	20	0	100	100
	55	60	50	40	205
Demand	55	60	50	40
Cost	2060
Total costs
	D	E	F	G	Supply
A	0	0	420	240	660
B	280	0	0	0	280
C	280	540	300	0	1120

(a)

	D	E	F	G	Supply
A	0	0	30	40	70
B	35	0	0	0	35
C	20	60	20	0	100
Total shipped	55	60	50	40	205
	D	E	F	G	Supply
A	0	0	420	240	660
B	280	0	0	0	280
C	280	540	300	0	1120
Total costs	560	540	720	240	2060