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There are n letters and n addressed e...

There are `n` letters and `n` addressed envelopes. Find the probability that all the letters are not kept in the right envelope.

A

`1/(n!)`

B

`1-1/(n!)`

C

`1-1/n`

D

None of these

Text Solution

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The correct Answer is:
B
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DISHA PUBLICATION-PROBABILITY -2-EXERCISE - 1 : CONCEPT BUILDER
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