A football stadium has 4 entrance gates and 9 exits. In how many different ways can a person enter and leave the stadium?

 Permutation and combination - Class 12 math 

Q) A football stadium has 4 entrance gates and 9 exits. In how many different ways can a person enter and leave the stadium?

Solution:

There are four ways to enter .

there are nine ways to exit.

 Total ways to enter and exit the stadium = 4×9=36 ways . 

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