The number of ways 4 friends can occupy 9 empty chairs in a stage where chairs arranged linearly is _________.Choices:- 3414 3249 3024 3104
Question
Solution 1
The problem can be solved using the concept of permutations in combinatorics.
Step 1: We have 4 friends and 9 chairs. We need to select 4 chairs out of 9 for the friends to sit. This can be done in 9C4 ways.
Step 2: The 4 friends can arrange themselves in these 4 selected chairs in 4! ways.
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