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Puzzle 7.

You are a tour operator running trips in South America and you have negotiated discounted fares on the following routes:

  • Bogatá → Lima
  • Lima → Bogatá
  • Bogatá → Rio de Janeiro
  • Rio de Janeiro → Bogatá
  • Lima → Rio de Janeiro
  • Rio de Janeiro → Lima
  • Manaus → Lima
  • Lima → Manaus
  • La Paz → Quito
  • Lima → La Paz
  • Quito → Lima
  • Rio de Janeiro → Buenos Aires
  • Santiago → Rio de Janeiro
  • Buenos Aires → Santiago

How many different tours are possible that travel over all of your discounted routes and start with a flight from Rio to Buenos Aires?

Your answer:
No answers can currently be submitted as the competition is closed.
MathsBombe 2017 is organised by the The School of Mathematics at the University of Manchester.
Contact us via mathsbombe@manchester.ac.uk with any queries.