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Four dragons (red, yellow, green, and blue) are getting ready to perform. The red dragon and the yellow dragon do not want to go on stage first. In how many different ways can the dragons go on stage?

Respuesta :

Using the arrangements formula, it is found that there are 12 ways for the dragons to go on stage.

What is the arrangements formula?

The number of possible arrangements of n elements is given by the factorial of n, that is:

[tex]A_n = n![/tex]

In this problem, we have that:

  • For the first dragon, either the green or the blue dragon, hence two outcomes.
  • For the remaining dragons, there are 3! possible ways.

Hence the number of ways by which they can go on stage is:

N = 2 x 3! = 12.

More can be learned about the arrangements formula at https://brainly.com/question/24648661

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