Subject: Re: Brain Teaser-Sit In A Row Fri Feb 05, 2010 11:58 am
You got it Flipper!!!
flipper09 Admin1
Join date : 2009-12-30 Age : 53
Subject: Brain Teaser- Sit in a Row Thu Feb 04, 2010 8:17 pm
Let me see if I can remember my math from college...lol. 5 possibilities for the first position, 4 for the second, 3 for the third, 2 for the fourth, and only 1 for the last. So the grand total would be 120?
mohala MOD.
Join date : 2009-12-01 Age : 62
Subject: Re: Brain Teaser-Sit In A Row Thu Feb 04, 2010 8:12 pm
Yes that's true about the language aspect. But how many ways can they sit in a row? [Only admins are allowed to see this image]
flipper09 Admin1
Join date : 2009-12-30 Age : 53
Subject: Brain Teaser- Sit in a Row Thu Feb 04, 2010 8:05 pm
OMG----I actually started thinking about this one and then looked at the hint again....lol. No matter what languages they each know, they are all french! So it doesn't matter how you seat them, because they will understand each other...lol.
mohala MOD.
Join date : 2009-12-01 Age : 62
Subject: Brain Teaser-Sit In A Row Thu Feb 04, 2010 12:41 pm
Sit In A Row Georges, Patrick, Charlis, Samuel and Bruno are five Frenchmen. Georges knows English and Chinese. Patrick knows Chinese and Japanese. Charlis knows Japanese and German. Samuel knows German and English. Bruno knows them all: English, Chinese, Japanese and German.
In how many ways can they sit in a row, such that any two neighboring persons have no problems in communication?
Hint: Look at its category.
Answer 5*4*3*2*1=120.
Last edited by mohala on Fri Feb 05, 2010 11:57 am; edited 1 time in total
Fri Jan 29, 2016 9:01 pm by countrybelle2004
