- Tardigrade
- Question
- Mathematics
- At a railway station a passenger leaves his luggage in a locker which is opened by dialing a three digit code from 000 to 999 . The passenger chooses the code, closes the locker leaves for the town. A strange man, who does not know the code, tries to open the locker by dialing 3 digits at random. Assuming that the unsuccessful attempts are not repeated, the probability that the locker opens in K text th trials is
Q. At a railway station a passenger leaves his luggage in a locker which is opened by dialing a three digit code from 000 to 999 . The passenger chooses the code, closes the locker \& leaves for the town. A strange man, who does not know the code, tries to open the locker by dialing 3 digits at random. Assuming that the unsuccessful attempts are not repeated, the probability that the locker opens in trials is
Solution: