The number of ways in which four different letters can be put in their four addressed envelopes that

The number of ways in which four different letters can be put in their four addressed envelopes such that atleast two of them are in the wrong envelopes are

The number of ways in which four different letters can be put in their four addressed envelopes such that atleast two of them are in the wrong envelopes are

The number of ways in which five different letters can be put in their five addressed envelopes so that all the letters are in the wrong envelopes is

The number of ways in which four different letters can be put in the correspondingly four addressed envelopes so that no letters are put in the correct envelope, is

The number of ways in which four letters can be put in four addressed envelops so that no letter goes into envelope meant for it is

The number of ways in which four different letters can be put in the correspondingly five addressed envelopes so that all letters are put in the correct envelope, is

Find the number of ways in which 4 letters can be put in 4 addressed envelopes so that no letter goes into the envelope meant for it.