The numbers 1,2,3,.., n are arranged in a random order. The probability that the digits `1,2,3,..,k(n gt k)` appears as neighbours in that order isA. `((n-k)!)/(n!)`B. `((n-k+1)!)/(.^nC_k)`C. `(n-k)/(,^nC_k)`D. `(k!)/(n!)`

The numbers 1,2,3,.., n are arranged in a random order. The probabilit

1.	The numbers 1,2,3,.., n are arranged in a random order. The probability that the digits `1,2,3,..,k(n gt k)` appears as neighbours in that order isA. `((n-k)!)/(n!)`B. `((n-k+1)!)/(.^nC_k)`C. `(n-k)/(,^nC_k)`D. `(k!)/(n!)`
Answer» Correct Answer - (b)

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The numbers 1,2,3,.., n are arranged in a random order. The probability that the digits `1,2,3,..,k(n gt k)` appears as neighbours in that order isA. `((n-k)!)/(n!)`B. `((n-k+1)!)/(.^nC_k)`C. `(n-k)/(,^nC_k)`D. `(k!)/(n!)`

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