Five letters are put in 5 addressed envelops randomly, number of ways in which at least…
Mathematics · JEE Main · NTA Exams — Permutations and Combinations
Five letters are put in 5 addressed envelops randomly, number of ways in which at least two letters go to the correct envelop is :
- 30
- 31
- 35
- 40
Answer
(B) 31
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