Typist's Speed

After the typist writes 12 letters and addresses 12 envelopes, he inserts 1 letter per envelope randomly into the envelopes. What is the probability that exactly 1 letter is inserted in an improper envelope?
This question is related to TCS Interview

Questions by Anu.K.J

Showing Answers 1 - 0 of 0 Answers

Give your answer:

If you think the above answer is not correct, Please select a reason and add your answer below.

 

Related Answered Questions

 

Related Open Questions