1.

Ajay writes five letters to his five friends and addresses the corresponding .The number of ways can the letters be placed in the envelopes so that at least 2 of them are in the wrong envelopes

Answer»

Ajay writes five letters to his five friends and addresses the corresponding .The number of ways can the letters be placed in the envelopes so that at least 2 of them are in the wrong envelopes



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