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If n letters are placed at random in n a...

If n letters are placed at random in n addressed envelops then the probability that all the letters are placed in correct envelops is

A

`(1)/(/_n)`

B

`1-(1)/(/_n)`

C

`(1)/(n)`

D

`1-(1)/(n)`

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The correct Answer is:
A
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AAKASH SERIES-PROBABILITY-Practise Exercise
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