In how many ways can 9 examination papers can be arranged so that the best and worst never come together
Answers
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1
Step-by-step explanation:
There are 2 possibilities of arranging the papers ,
- best papers
- worst papers.
Therefore 9 examination papers can be arranged in
9C2 ways
9×8/2×1 = 36
•°• the 9 examination papers can be arranged in 36 ways.
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