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Question

# If n objects are arranged in a row, then the number of ways of selecting three of these objects so that no two of them are next to each other is -

^{n – 2}C_{3}
^{n – 3}C_{2}
^{n – 3}C_{3}
- None of these

^{n – 2}C_{3}^{n – 3}C_{2}^{n – 3}C_{3}## The correct answer is: ^{n – 2}C_{3}

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