Let there be 2500 lockers. You have to unlock lockers. You should proceed in such a way that you have unlocked the 1st one, then the 2nd one, then the 3rd one and so on. When you finish a trial, you will do in the same way. Thus you'll have a locker that has never been unlocked.
What is the place of that locker in 2500 lockers???
This blog is created for solving Mathematical Problems and for discussing Mathematics as well as Logic.
