TS EAMCET · Maths · Permutation Combination
If there are letters written to different people and envelopes addressed to them, then the number of ways in which these letters can be arranged so that no letter goes into its corresponding envelope is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Given that 5 letters are written to 5 different people and 5 envelopes addressed to them The number of ways in which these letters can be arranged so that no letter goes into its corresponding envelope is equal to number of derangement of 5 objects The derangement of n objects…
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