![]() |
|
Algebra Pre-Algebra and Basic Algebra Math Forum |
![]() |
| LinkBack | Thread Tools | Display Modes |
September 11th, 2009, 12:46 AM | #1 |
Newbie Joined: Aug 2009 Posts: 3 Thanks: 0 | problem solving
there are 30 students in a class. they sit a 15 double desks, each ine is for two students. half of the girls sit with boys. is it possible to make a rearrangement so that half of the boys sit with girls. thnx a gazillion jc.xd PS: can you show working out/reason thnx |
![]() |
September 11th, 2009, 04:53 PM | #2 | |
Global Moderator Joined: May 2007 Posts: 6,684 Thanks: 658 | Re: problem solving Quote:
Case 1: 14 girls and 16 boys. 8 boys sit with girls, 6 girls paired together, 8 boys paired together. Case 2: 4 girls and 26 boys. There are not enough girls to pair off with 13 boys. In other words there have to be at least 10 girls for boys to pair off, and at least 10 boys for girls to pair off. | |
![]() |
![]() |
|
Tags |
problem, solving |
Thread Tools | |
Display Modes | |
|
![]() | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Solving a log problem | maclen89 | Algebra | 9 | April 8th, 2012 08:18 PM |
Problem Solving | xnarutox | Algebra | 10 | March 2nd, 2011 04:39 PM |
Help solving a problem | kevinp123 | Linear Algebra | 4 | February 2nd, 2011 06:14 PM |
Solving Log problem | beefeater267 | Real Analysis | 3 | August 30th, 2007 08:25 AM |
problem solving | juan | Number Theory | 0 | December 31st, 1969 04:00 PM |