21-Feb-2012, 1:50 PM
Quote:* Take 100 school lockers (numbered 1-100). Open every one. Close every second one. Toggle (open or close) every third one, etc. Which lockers are left open at the end?What exactly do you mean by "etc."?
- Madhav.
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300 posts!
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300 posts! - by geodave - 19-Feb-2012, 11:51 AM
300 posts! - by Markus - 19-Feb-2012, 1:35 PM
300 posts! - by AdrenalinDragon - 19-Feb-2012, 4:56 PM
300 posts! - by Green Kitten - 19-Feb-2012, 5:08 PM
300 posts! - by geodave - 20-Feb-2012, 11:58 AM
300 posts! - by rockdet - 20-Feb-2012, 1:50 PM
300 posts! - by James - 20-Feb-2012, 7:25 PM
300 posts! - by geodave - 20-Feb-2012, 9:34 PM
300 posts! - by BitBuster - 21-Feb-2012, 9:02 AM
300 posts! - by PB_guy - 21-Feb-2012, 11:27 AM
300 posts! - by geodave - 21-Feb-2012, 12:18 PM
300 posts! - by BitBuster - 21-Feb-2012, 1:01 PM
300 posts! - by KeyboardWielder - 21-Feb-2012, 1:39 PM
300 posts! - by KeyboardWielder - 21-Feb-2012, 1:50 PM
300 posts! - by Ida - 21-Feb-2012, 2:41 PM
300 posts! - by tensorpudding - 21-Feb-2012, 3:00 PM
300 posts! - by James - 21-Feb-2012, 3:14 PM
300 posts! - by Flareon350 - 21-Feb-2012, 4:19 PM
300 posts! - by BitBuster - 21-Feb-2012, 7:15 PM
300 posts! - by tensorpudding - 21-Feb-2012, 8:09 PM
300 posts! - by geodave - 22-Feb-2012, 10:59 AM
300 posts! - by rockdet - 22-Feb-2012, 12:18 PM
300 posts! - by geodave - 22-Feb-2012, 12:27 PM
300 posts! - by BitBuster - 22-Feb-2012, 1:16 PM
300 posts! - by Lessinath - 22-Feb-2012, 4:57 PM
300 posts! - by geodave - 27-Feb-2012, 3:36 PM
300 posts! - by geodave - 27-Feb-2012, 3:38 PM
300 posts! - by rockdet - 27-Feb-2012, 5:20 PM
300 posts! - by geodave - 27-Feb-2012, 7:55 PM
300 posts! - by BitBuster - 28-Feb-2012, 3:17 PM
300 posts! - by rockdet - 28-Feb-2012, 3:43 PM
300 posts! - by BitBuster - 28-Feb-2012, 4:04 PM
300 posts! - by Lessinath - 28-Feb-2012, 4:17 PM
300 posts! - by rockdet - 28-Feb-2012, 4:23 PM
300 posts! - by BitBuster - 28-Feb-2012, 4:40 PM
300 posts! - by rockdet - 28-Feb-2012, 5:08 PM
300 posts! - by BitBuster - 28-Feb-2012, 6:47 PM
300 posts! - by geodave - 28-Feb-2012, 8:24 PM
300 posts! - by rockdet - 28-Feb-2012, 11:01 PM
300 posts! - by BitBuster - 29-Feb-2012, 1:30 PM
300 posts! - by AdrenalinDragon - 07-Mar-2012, 5:49 AM
300 posts! - by jblewis - 15-Mar-2012, 8:33 PM
300 posts! - by Lessinath - 15-Mar-2012, 9:15 PM
300 posts! - by jblewis - 15-Mar-2012, 9:19 PM
300 posts! - by BigOto2 - 15-Mar-2012, 9:34 PM
300 posts! - by geodave - 15-Mar-2012, 9:36 PM
300 posts! - by rockdet - 15-Mar-2012, 10:32 PM
300 posts! - by BitBuster - 19-Mar-2012, 8:01 AM
300 posts! - by rockdet - 20-Mar-2012, 9:45 PM
300 posts! - by geodave - 21-Mar-2012, 8:31 AM
300 posts! - by BitBuster - 21-Mar-2012, 10:52 AM
300 posts! - by geodave - 21-Mar-2012, 1:06 PM
300 posts! - by BitBuster - 21-Mar-2012, 1:13 PM
300 posts! - by BigOto2 - 21-Mar-2012, 7:46 PM
300 posts! - by rockdet - 22-Mar-2012, 12:58 AM
300 posts! - by Flareon350 - 22-Mar-2012, 3:53 PM
300 posts! - by geodave - 22-Mar-2012, 4:09 PM
300 posts! - by BitBuster - 22-Mar-2012, 4:12 PM
300 posts! - by geodave - 22-Mar-2012, 4:17 PM
300 posts! - by geodave - 22-Mar-2012, 4:29 PM
300 posts! - by AdrenalinDragon - 22-Mar-2012, 4:47 PM
300 posts! - by BitBuster - 22-Mar-2012, 4:49 PM
300 posts! - by BigOto2 - 22-Mar-2012, 7:20 PM
300 posts! - by BitBuster - 22-Mar-2012, 7:34 PM
300 posts! - by BigOto2 - 22-Mar-2012, 7:44 PM
300 posts! - by BitBuster - 22-Mar-2012, 7:46 PM
300 posts! - by BigOto2 - 22-Mar-2012, 7:53 PM
300 posts! - by BitBuster - 22-Mar-2012, 7:54 PM
300 posts! - by BigOto2 - 22-Mar-2012, 7:56 PM
300 posts! - by BitBuster - 22-Mar-2012, 8:00 PM
300 posts! - by BigOto2 - 22-Mar-2012, 8:06 PM
300 posts! - by geodave - 22-Mar-2012, 9:33 PM
300 posts! - by Lessinath - 23-Mar-2012, 12:30 AM
300 posts! - by BitBuster - 23-Mar-2012, 7:46 AM
300 posts! - by geodave - 23-Mar-2012, 8:32 AM
300 posts! - by BitBuster - 23-Mar-2012, 8:34 AM
300 posts! - by BigOto2 - 23-Mar-2012, 6:07 PM
300 posts! - by AdrenalinDragon - 23-Mar-2012, 6:42 PM
300 posts! - by jblewis - 23-Mar-2012, 10:21 PM
300 posts! - by BitBuster - 24-Mar-2012, 10:20 AM
300 posts! - by BigOto2 - 24-Mar-2012, 11:09 AM
300 posts! - by BitBuster - 24-Mar-2012, 11:14 AM
300 posts! - by rockdet - 25-Mar-2012, 12:30 AM
300 posts! - by jblewis - 25-Mar-2012, 6:24 AM
300 posts! - by BitBuster - 25-Mar-2012, 9:34 AM
300 posts! - by jblewis - 25-Mar-2012, 10:20 AM
300 posts! - by BitBuster - 25-Mar-2012, 10:28 AM
300 posts! - by jblewis - 25-Mar-2012, 10:31 AM
300 posts! - by BitBuster - 25-Mar-2012, 10:37 AM
300 posts! - by AdrenalinDragon - 25-Mar-2012, 11:42 AM
300 posts! - by BitBuster - 25-Mar-2012, 12:47 PM
300 posts! - by AdrenalinDragon - 25-Mar-2012, 1:31 PM
300 posts! - by rockdet - 25-Mar-2012, 4:14 PM
300 posts! - by BitBuster - 25-Mar-2012, 4:26 PM
300 posts! - by jblewis - 25-Mar-2012, 4:37 PM
300 posts! - by BitBuster - 25-Mar-2012, 4:45 PM
300 posts! - by jblewis - 25-Mar-2012, 5:10 PM
300 posts! - by BitBuster - 25-Mar-2012, 5:16 PM
300 posts! - by geodave - 25-Mar-2012, 8:02 PM
300 posts! - by AdrenalinDragon - 25-Mar-2012, 8:04 PM
300 posts! - by Flareon350 - 25-Mar-2012, 8:06 PM
300 posts! - by geodave - 25-Mar-2012, 10:52 PM
300 posts! - by geodave - 25-Mar-2012, 11:09 PM
300 posts! - by Flareon350 - 25-Mar-2012, 11:29 PM
300 posts! - by geodave - 25-Mar-2012, 11:32 PM
300 posts! - by Flareon350 - 25-Mar-2012, 11:37 PM
300 posts! - by geodave - 25-Mar-2012, 11:49 PM
300 posts! - by jblewis - 26-Mar-2012, 4:31 AM
300 posts! - by Flareon350 - 26-Mar-2012, 3:18 PM
300 posts! - by jblewis - 26-Mar-2012, 4:13 PM
300 posts! - by BitBuster - 26-Mar-2012, 4:26 PM
300 posts! - by geodave - 26-Mar-2012, 5:23 PM
300 posts! - by BitBuster - 26-Mar-2012, 7:39 PM
300 posts! - by BigOto2 - 27-Mar-2012, 12:06 AM
300 posts! - by jblewis - 27-Mar-2012, 6:11 AM
300 posts! - by AdrenalinDragon - 27-Mar-2012, 10:56 AM
300 posts! - by BitBuster - 27-Mar-2012, 11:52 AM
300 posts! - by Flareon350 - 27-Mar-2012, 4:15 PM
300 posts! - by geodave - 29-Mar-2012, 12:49 PM
300 posts! - by Flareon350 - 29-Mar-2012, 12:55 PM
300 posts! - by BitBuster - 29-Mar-2012, 1:15 PM
300 posts! - by geodave - 29-Mar-2012, 1:18 PM
300 posts! - by BitBuster - 29-Mar-2012, 6:37 PM
300 posts! - by geodave - 29-Mar-2012, 7:14 PM
300 posts! - by BitBuster - 29-Mar-2012, 7:23 PM
300 posts! - by geodave - 29-Mar-2012, 10:36 PM
300 posts! - by BitBuster - 30-Mar-2012, 7:52 AM
300 posts! - by jblewis - 30-Mar-2012, 11:29 AM
300 posts! - by BitBuster - 30-Mar-2012, 11:42 AM
300 posts! - by geodave - 30-Mar-2012, 12:49 PM
300 posts! - by AdrenalinDragon - 30-Mar-2012, 1:19 PM
300 posts! - by BitBuster - 30-Mar-2012, 2:10 PM
300 posts! - by geodave - 30-Mar-2012, 2:27 PM
300 posts! - by BitBuster - 30-Mar-2012, 2:28 PM
300 posts! - by geodave - 30-Mar-2012, 2:31 PM
300 posts! - by BitBuster - 30-Mar-2012, 2:34 PM
300 posts! - by jblewis - 30-Mar-2012, 5:45 PM
300 posts! - by geodave - 30-Mar-2012, 8:26 PM
300 posts! - by jblewis - 30-Mar-2012, 10:17 PM
300 posts! - by BigOto2 - 31-Mar-2012, 12:26 AM
300 posts! - by jblewis - 31-Mar-2012, 8:25 AM
300 posts! - by BitBuster - 31-Mar-2012, 10:08 AM
300 posts! - by jblewis - 31-Mar-2012, 10:30 AM
300 posts! - by BitBuster - 31-Mar-2012, 10:54 AM
300 posts! - by jblewis - 31-Mar-2012, 11:10 AM
300 posts! - by BitBuster - 31-Mar-2012, 11:13 AM
300 posts! - by jblewis - 31-Mar-2012, 11:17 AM
300 posts! - by BitBuster - 31-Mar-2012, 11:22 AM
300 posts! - by jblewis - 31-Mar-2012, 11:57 AM
300 posts! - by BitBuster - 31-Mar-2012, 12:17 PM
300 posts! - by jblewis - 31-Mar-2012, 7:09 PM
300 posts! - by IceyLava108 - 31-Mar-2012, 10:36 PM
300 posts! - by geodave - 01-Apr-2012, 12:04 AM
300 posts! - by IceyLava108 - 01-Apr-2012, 12:14 AM
300 posts! - by jblewis - 01-Apr-2012, 7:43 AM
300 posts! - by geodave - 01-Apr-2012, 7:45 AM
300 posts! - by BitBuster - 01-Apr-2012, 12:17 PM
300 posts! - by Flareon350 - 01-Apr-2012, 4:44 PM
300 posts! - by BitBuster - 02-Apr-2012, 8:20 AM
300 posts! - by geodave - 05-Apr-2012, 10:37 PM
300 posts! - by geodave - 05-Apr-2012, 10:38 PM
300 posts! - by BitBuster - 06-Apr-2012, 8:07 AM
300 posts! - by KeyboardWielder - 06-Apr-2012, 9:39 AM
300 posts! - by geodave - 06-Apr-2012, 10:37 AM
300 posts! - by BitBuster - 06-Apr-2012, 11:59 AM
300 posts! - by AdrenalinDragon - 06-Apr-2012, 2:17 PM
300 posts! - by geodave - 06-Apr-2012, 5:39 PM
300 posts! - by AdrenalinDragon - 06-Apr-2012, 6:00 PM
300 posts! - by BitBuster - 06-Apr-2012, 6:11 PM
300 posts! - by geodave - 06-Apr-2012, 6:11 PM
300 posts! - by BitBuster - 06-Apr-2012, 6:12 PM
300 posts! - by geodave - 06-Apr-2012, 7:07 PM
300 posts! - by geodave - 06-Apr-2012, 7:15 PM
300 posts! - by BitBuster - 06-Apr-2012, 7:35 PM
300 posts! - by geodave - 07-Apr-2012, 9:12 PM
300 posts! - by BitBuster - 08-Apr-2012, 11:01 AM
300 posts! - by IceyLava108 - 08-Apr-2012, 3:11 PM
300 posts! - by BitBuster - 08-Apr-2012, 3:19 PM
300 posts! - by jblewis - 08-Apr-2012, 10:22 PM
300 posts! - by BitBuster - 09-Apr-2012, 7:28 AM
300 posts! - by jblewis - 09-Apr-2012, 10:00 AM
300 posts! - by BitBuster - 09-Apr-2012, 10:13 AM
300 posts! - by jblewis - 09-Apr-2012, 10:35 PM
300 posts! - by BitBuster - 10-Apr-2012, 12:30 PM
300 posts! - by Flareon350 - 10-Apr-2012, 1:19 PM
300 posts! - by BitBuster - 10-Apr-2012, 2:03 PM
300 posts! - by jblewis - 10-Apr-2012, 11:09 PM
300 posts! - by BitBuster - 11-Apr-2012, 8:12 AM
300 posts! - by jblewis - 11-Apr-2012, 10:52 PM
300 posts! - by BitBuster - 12-Apr-2012, 8:07 AM
300 posts! - by BigOto2 - 12-Apr-2012, 2:02 PM
300 posts! - by geodave - 12-Apr-2012, 2:59 PM
300 posts! - by geodave - 12-Apr-2012, 3:18 PM
300 posts! - by BitBuster - 12-Apr-2012, 4:21 PM
300 posts! - by geodave - 12-Apr-2012, 7:34 PM
300 posts! - by BitBuster - 12-Apr-2012, 7:45 PM
300 posts! - by geodave - 13-Apr-2012, 10:32 AM
300 posts! - by BitBuster - 13-Apr-2012, 11:29 AM
300 posts! - by geodave - 13-Apr-2012, 11:33 AM
300 posts! - by BitBuster - 13-Apr-2012, 11:41 AM
300 posts! - by geodave - 13-Apr-2012, 11:45 AM
300 posts! - by BitBuster - 13-Apr-2012, 2:05 PM
300 posts! - by Flareon350 - 13-Apr-2012, 9:19 PM
300 posts! - by BitBuster - 14-Apr-2012, 12:31 PM
300 posts! - by IceyLava108 - 14-Apr-2012, 10:31 PM
300 posts! - by BitBuster - 15-Apr-2012, 2:05 PM
300 posts! - by IceyLava108 - 15-Apr-2012, 4:48 PM
300 posts! - by BitBuster - 15-Apr-2012, 5:18 PM
300 posts! - by geodave - 23-Apr-2012, 1:23 PM
300 posts! - by BitBuster - 23-Apr-2012, 1:34 PM
300 posts! - by Flareon350 - 23-Apr-2012, 4:03 PM
300 posts! - by BitBuster - 23-Apr-2012, 4:14 PM
300 posts! - by Flareon350 - 23-Apr-2012, 4:36 PM
300 posts! - by BitBuster - 23-Apr-2012, 6:10 PM
300 posts! - by Flareon350 - 23-Apr-2012, 6:24 PM
300 posts! - by BitBuster - 23-Apr-2012, 7:38 PM
300 posts! - by geodave - 24-May-2012, 8:37 PM
300 posts! - by Flareon350 - 24-May-2012, 10:34 PM
300 posts! - by BitBuster - 25-May-2012, 8:15 AM
300 posts! - by Flareon350 - 25-May-2012, 3:59 PM
300 posts! - by geodave - 29-Jul-2012, 8:45 AM
300 posts! - by quiznos00 - 29-Jul-2012, 1:24 PM
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