4. We will have an ordered parade of the flags of 15 countries through the streets of Koper. In how many ways can we order the flags in the parade if: (a) one flag is Slovenia's and it must come first; (b) the flags of countries X and Y are a similar colour, so they cannot be next to each other.
4. We will have an ordered parade of the flags of 15 countries through the streets of Koper. In how many ways can we order the flags in the parade if: (a) one flag is Slovenia's and it must come first; (b) the flags of countries X and Y are a similar colour, so they cannot be next to each other.
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 40SE: A family consisting of 2 parents and 3 children is to pose for a picture with 2 family members in...
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Transcribed Image Text:4. We will have an ordered parade of the flags of 15
countries through the streets of Koper. In how
many ways can we order the flags in the parade if:
(a) one flag is Slovenia's and it must come first;
(b) the flags of countries X and Y are a similar
colour, so they cannot be next to each other.
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