While staying in Buenos Aires, Argentina, you decide to take a trip to three other cities: Tucuman, Bahia Blanca, and Salta. The following table shows the costs associated with traveling to or from each of these four cities. All costs listed are given in Argentine pesos ($).


Origin and Destination

Cost ($)

Buenos Aires to Tucuman

211

Buenos Aires to Bahia Blanca

268

Buenos Aires to Salta

238

Tucuman to Buenos Aires

272

Tucuman to Bahia Blanca

195

Tucuman to Salta

203

Bahia Blanca to Buenos Aires

200

Bahia Blanca to Tucuman

229

Bahia Blanca to Salta

211

Salta to Buenos Aires

193

Salta to Tucuman

267

Salta to Bahia Blanca

275


Using the information in the table, determine the least expensive way to visit all of these cities, starting and ending in Buenos Aires.

a.

Buenos Aires 2007-14-01-00-00_files/i0220000.jpg Salta 2007-14-01-00-00_files/i0220001.jpg Bahia Blanca 2007-14-01-00-00_files/i0220002.jpg Tucuman 2007-14-01-00-00_files/i0220003.jpg Buenos Aires

b.

Buenos Aires 2007-14-01-00-00_files/i0220004.jpg Tucuman 2007-14-01-00-00_files/i0220005.jpg Salta 2007-14-01-00-00_files/i0220006.jpg Bahia Blanca 2007-14-01-00-00_files/i0220007.jpg Buenos Aires

c.

Buenos Aires 2007-14-01-00-00_files/i0220008.jpg Tucuman 2007-14-01-00-00_files/i0220009.jpg Bahia Blanca 2007-14-01-00-00_files/i0220010.jpg Salta 2007-14-01-00-00_files/i0220011.jpg Buenos Aires

d.

Buenos Aires 2007-14-01-00-00_files/i0220012.jpg Bahia Blanca 2007-14-01-00-00_files/i0220013.jpg Tucuman 2007-14-01-00-00_files/i0220014.jpg Salta 2007-14-01-00-00_files/i0220015.jpg Buenos Aires