All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars
 perplexus dot info

 Envelopes (Posted on 2003-04-10)
There are three envelopes and exactly two statements are written on each of the envelopes. The statements on one of the envelopes are BOTH TRUE, the statements on the other envelope are BOTH FALSE and the remaining envelope has ONE TRUE and ONE FALSE statement. Here is what is written on the three envelopes:

First Envelope:
(a)The formula is not in here.
(b)The formula is in Envelope 2.

Second Envelope:
(a)The formula is not in Envelope 1.
(b)The formula is in Envelope 3.

Third Envelope:
(a)The formula is not in here.
(b)The formula is in Envelope 1.

Which envelope contains the formula ?

 See The Solution Submitted by Ravi Raja Rating: 2.9091 (11 votes)

 Subject Author Date Solution without using case-by-case analysis Brian Smith 2017-01-02 14:03:56 A different method Gamer 2008-04-06 15:20:38 Search, Find FrankM 2008-04-06 09:37:32 Answer Praneeth 2007-08-29 06:45:12 Solution Bob 2005-03-09 22:24:24 I got it John 2004-09-19 03:27:30 Solution Lewis 2003-07-25 22:26:41 re(4): this is easy Ravi Raja 2003-04-30 19:34:10 re(3): this is easy Michael 2003-04-23 23:10:16 Explanation... Tim Axoy 2003-04-17 11:33:26 re(2): this is easy Ravi Raja 2003-04-15 21:57:40 re: this is easy Ravi Raja 2003-04-15 21:45:24 re: this is easy Steven 2003-04-15 06:53:38 this is easy tony 2003-04-14 10:38:09 re: 1 and 2,true and true. Ravi Raja 2003-04-13 04:54:38 re: Hunting for the formula Ravi Raja 2003-04-13 04:48:23 re: HAHA! i think i got it Ravi Raja 2003-04-13 04:44:30 1 and 2,true and true. Tim Axoy 2003-04-13 04:21:59 re(2): Solution Ravi Raja 2003-04-13 04:19:49 Hunting for the formula Tim Axoy 2003-04-13 04:18:55 re: My thought Ravi Raja 2003-04-13 04:15:20 re(2): Is it that straightforward? Ravi Raja 2003-04-13 04:07:12 re: Is it that straightforward? Ravi Raja 2003-04-13 04:05:20 HAHA! i think i got it Steven 2003-04-12 20:13:52 re: solution Steven 2003-04-12 20:03:27 re: Solution john 2003-04-12 15:42:41 re: easy way to solve this type of problem john 2003-04-12 15:38:49 My thought Jessica Price 2003-04-11 21:04:38 re: Is it that straightforward? Andrew F 2003-04-11 17:30:45 Is it that straightforward? Andrew F 2003-04-11 17:20:55 re: solution Ravi Raja 2003-04-10 22:24:08 easy way to solve this type of problem Jon 2003-04-10 10:03:22 re: solution austin 2003-04-10 08:19:19 solution austin 2003-04-10 08:13:20 entertaining The Mighty Puck 2003-04-10 06:45:27 answer DuCk 2003-04-10 03:08:08 Solution DJ 2003-04-10 02:51:15

 Search: Search body:
Forums (1)