perplexus.info :: Numbers : Lockers

Lockers (Posted on 2002-12-06)

There is a wall with 1000 closed lockers on it. A person walks down the hall opening every other locker. Then the next person opens every 3rd locker. The next opens every fourth locker. The next every fifth locker.

Once this has been done, how many lockers are still closed?

See The Solution Submitted by Erin

Rating: 3.0000 (7 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Puzzle Thoughts	K Sengupta	2023-05-26 01:41:30
No Subject	Federico Kereki	2006-04-11 14:23:42
Formula	Larry	2005-06-13 02:49:18
Another Twist	Nathan Hirtz	2005-04-21 17:37:15
re: Solution Plus Assumption	Cory Taylor	2003-02-20 10:22:08
2 solutions	out4blood	2003-02-20 04:34:41
Solution Plus Assumption	np_rt	2002-12-07 14:04:59
re:	levik	2002-12-07 05:14:26
No Subject	Anthony	2002-12-07 04:26:26
Some questions about procedure	TomM	2002-12-06 21:29:26
My guess and reason why.	cges	2002-12-06 19:45:24

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