The number of ways to put 6 letters in 6 addressed envelopes so that all are placed in…
Mathematics · JEE Main · NTA Exams — Permutations and Combinations
The number of ways to put 6 letters in 6 addressed envelopes so that all are placed in wrong envelopes, are
- 250
- 144
- 265
- None of these
Answer
(D) None of these
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