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

 Logical Nonsense (Posted on 2003-08-26)
• All, who neither dance on tight ropes nor eat peanut butter, are tall.

• Creatures with spikey hair who look silly will go swimming if they do not dance on tight-ropes.

• A kangaroo looks silly wearing sunglasses.

• A smart creature will always do what he ought to do.

• No one ought to go swimming who looks silly and eats peanut butter.

• A smart driver wears sunglasses.

• Kangaroos that have sneezing fits are avoided.

• Short creatures who go driving have sneezing fits.

• No creatures ought to dance on tight-ropes if they have sneezing fits.

• All, who do not dance on tight-ropes and who are avoided, have spikey hair.
Therefore, no short kangaroos who are smart...

 Submitted by DJ Rating: 4.2105 (19 votes) Solution: (Hide) No short kangaroos who are smart will go driving. The proof of this is as follows: Assume that he will go driving. A short creature who goes driving will have sneezing fits. A smart creature who has sneezing fits will not dance on tight-ropes. A short creature who does not dance on tight-ropes must eat peanut butter. Also, a kangaroo who has sneezing fits will be avoided. A creature who is avoided and who does not dance on tight-ropes must have spikey hair. A smart driver wears sunglasses. A kangaroo wearing sunglasses looks silly. A silly creature who eats peanut butter and is smart will not go swimming. However, a creature with spikey hair who looks silly and does not dance on tight-ropes will go swimming. Here, we have a contradiction; the same creature will not go swimming and will go swimming, so the assumption that the kangaroo in question can drive must be false.

Comments: ( You must be logged in to post comments.)
 Subject Author Date The first comma threw me off. John 2005-08-01 02:46:17 one more thing :-) cat 2003-08-31 00:24:23 Hey, DJ, What happened Lawrence 2003-08-28 19:28:14 re: Here is a LOGICAL solution..... DJ 2003-08-28 10:55:59 Here is a LOGICAL solution..... Dan Erickson 2003-08-27 16:58:45 re(3): answer catherine 2003-08-27 15:51:28 re(2): answer catherine 2003-08-27 15:45:42 re: answer DJ 2003-08-27 13:13:27 re: answer catherine 2003-08-27 03:19:59 answer Talon5000 2003-08-27 01:26:31 my tentative solution catherine 2003-08-26 23:26:31 Continuation Hans 2003-08-26 17:56:55 Pushed? Gamer 2003-08-26 16:00:45

 Search: Search body:
Forums (5)