TCS
Company
Numerical Ability
Probability
After the typist writes 12 letters and addresses 12 envelopes, she inserts the letters randomly into the envelopes (1 letter per envelope). What is the probability that exactly 1 letter is inserted in an improper envelope?
a)1/12 b)0 c)12/212 d)11/12
Read Solution (Total 10)
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- 0
If one letter is in wrong envelope, the letter corresponding to that letter will also be in wrong envelope. - 14 years agoHelpfull: Yes(21) No(5)
- can anyone plz tell me are questions being repeated in TCS plz its urgent ..
if anyone have recently attend it - 14 years agoHelpfull: Yes(8) No(2)
- ateh possible ways are 0 as if 1 letter put in 1 weong envelope then the other envelope also have wrong letter so ther is no probablilty
- 14 years agoHelpfull: Yes(5) No(1)
- zero.
- 14 years agoHelpfull: Yes(2) No(0)
- 0
- 14 years agoHelpfull: Yes(2) No(0)
- 0 is the answer
- 14 years agoHelpfull: Yes(2) No(0)
- 0
- 14 years agoHelpfull: Yes(0) No(0)
- Zero
- 14 years agoHelpfull: Yes(0) No(0)
- 0
- 14 years agoHelpfull: Yes(0) No(0)
- 0
- 14 years agoHelpfull: Yes(0) No(1)
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