Tuesday, April 24, 2012

Challenge 9

The Headmaster went on holiday to Santander.
During his holidays the following statements were right:
  • It rained seven times in the morning or in the aftenoon.
  • When it rained in the afternoon, the morning was sunny.
  • There were exactly five sunny afternnons and six sunny mornings.
How many days was the Headmaster on holidays?