Given 5 flags of different colours, how many different signals can | Filo
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Class 11

Math

Algebra

Permutations and Combinations

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Given flags of different colours, how many different signals can be generated if each signal require use of flags one below the other?

  1. 20
Correct Answer: Option(a)
Solution: Flags 
Each signal needs  two glags 
Therefore number of possible signals 
Hence the correct answer is  signals
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