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There are 4 envelopes corresponding to 4...

There are 4 envelopes corresponding to 4 letters. If the letters are placed in the envelopes at random, probability that all the letters are not placed in the right envelopes is

A

`1//24`

B

`1`

C

`23//24`

D

`9//2`

Text Solution

Verified by Experts

The correct Answer is:
C
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