Go to navigation
It is currently Sun Dec 11, 2016 10:01 am

All times are UTC




Post new topic Reply to topic  [ 8 posts ] 
Author Message
 Post subject: Help on question
PostPosted: Thu Sep 04, 2008 12:25 pm 
Offline

Joined: Thu Oct 11, 2007 9:21 pm
Posts: 181
Location: Medway/Kent
I have seen this type of question on many papers and have never known an easy way of working it. I am sure there are some clever people out there that can.

Juliet and her friends are delivering leaflets around the local housing estate where she won’t have to walk down the same street more than once (she can pass over the same corners more than once). On which of these street layouts is this possible?
You are then given a series of shapes to chose from (sorry I cannot copy these in)


Does anyone have any ideas?
reddebs


Top
 Profile  
 
 Post subject:
PostPosted: Thu Sep 04, 2008 7:51 pm 
Offline

Joined: Wed Jan 02, 2008 12:18 pm
Posts: 490
Location: kent
Just try it out and see .... I don't remember seeing any difficult ones like this in the NFER practice paper packs. Or is your 11+ not set by NFER?


Top
 Profile  
 
 Post subject:
PostPosted: Thu Sep 04, 2008 8:38 pm 
Offline

Joined: Mon Aug 25, 2008 7:07 pm
Posts: 55
Oh I have that one the ansew Is a triangle with triangles in all directions inside it if that is there LOL. :D

_________________
Emma


Top
 Profile  
 
 Post subject:
PostPosted: Fri Sep 05, 2008 7:39 am 
Offline

Joined: Tue Jan 01, 2008 1:05 pm
Posts: 515
This is about as far as we got on the subject before.

viewtopic.php?t=4950


Top
 Profile  
 
 Post subject:
PostPosted: Fri Sep 05, 2008 11:31 am 
Offline

Joined: Fri Sep 05, 2008 11:28 am
Posts: 63
I can't be sure of the answer without seeing the options.

However, I think the 'simple' answer is that any layout with less than 2 nodes (i.e. places where roads join or cross) with an odd number of roads is doable without repeating ... if it has three or more places where there are a odd number, it's not possible.


Top
 Profile  
 
 Post subject:
PostPosted: Fri Sep 05, 2008 1:42 pm 
Offline

Joined: Tue Jan 01, 2008 1:05 pm
Posts: 515
ks wrote:
I can't be sure of the answer without seeing the options.

However, I think the 'simple' answer is that any layout with less than 2 nodes (i.e. places where roads join or cross) with an odd number of roads is doable without repeating ... if it has three or more places where there are a odd number, it's not possible.


I think it is safe to assume that all 11+ questions will be doable, or have an answer. I think the original question was in the hope that someone could come up with a quick method to address all such questions.


Top
 Profile  
 
 Post subject:
PostPosted: Sat Sep 06, 2008 1:06 pm 
Offline

Joined: Fri Sep 05, 2008 11:28 am
Posts: 63
i was obviously not clear enough.
The original question asked 'which layouts were possible'.

The layouts are possible (refered to as doable in my previous post) is there are 2 or less places where an odd number of roads link.

The doable did not refer to whether the question was doable or not : as you rightly say they all are.

If my answer is still not clear I can try & expand further. But try it, it works on any road layout.


Top
 Profile  
 
 Post subject:
PostPosted: Sun Sep 07, 2008 1:34 pm 
Offline

Joined: Thu Aug 16, 2007 8:40 pm
Posts: 5
This is how I always tought my children about this type of questions.
Try drawing each shape on a paper without interrupting the line. You are not allowed to go over the same line twice.
Hope my method is not very complicated.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

All times are UTC


Who is online

Users browsing this forum: Yahoo [Bot] and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
CALL 020 8204 5060
   
Privacy Policy | Refund Policy | Disclaimer | Copyright © 2004 – 2016