It is currently Fri Jan 19, 2018 9:55 am

 All times are UTC

 Page 1 of 1 [ 3 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: More Help PleasePosted: Thu Feb 15, 2007 9:50 am
When tiling the square wall of my kitchen, I use red and blue square tiles
all of the same size. In the pattern all the tiles are red apart from those on the two diagonals which are blue. If I use 37 blue tiles, how many red tiles are needed?

Top

 Post subject: Posted: Thu Feb 15, 2007 11:31 am
Its square
the blue tiles are in the diagonals
there are an odd number of blue tiles so the center tile is shared.

the number of tiles in a diagonal is the same as the number of tiles in an edge.

so (37 +1)/2 will give us the length of an edge (+1 for shared tile)

so length of edge is 19 tiles

19x19= 361 total tiles

red tiles = 361-37 = 324 tiles

Top

 Post subject: Posted: Thu Feb 15, 2007 11:36 am

Joined: Tue Dec 13, 2005 12:49 pm
Posts: 1647
Location: berkshire
Possibly...
Each diagonal line (set in a cross) would be 19 squares therefore I would assume wall would be 19 x19 = 361 tiles. 361 - 27 (blue tiles) = 324.
(havent double checked the figures.)

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 3 posts ]

 All times are UTC

#### Who is online

Users browsing this forum: No registered users and 4 guests

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

Search for:
 Jump to:  Select a forum ------------------ FORUM RULES    Forum Rules and FAQs 11 PLUS SUBJECTS    VERBAL REASONING    MATHS    ENGLISH    NON-VERBAL REASONING    CEM 11 Plus GENERAL    GENERAL 11 PLUS TOPICS    11 PLUS APPEALS    11 PLUS TUTORS    INDEPENDENT SCHOOLS    11 PLUS CDs/SOFTWARE    11 PLUS TIPS    PRIMARY    SEN and the 11 PLUS    EVERYTHING ELSE .... 11 PLUS REGIONS    Berkshire    Bexley and Bromley    Birmingham, Walsall, Wolverhampton and Wrekin    Buckinghamshire    Devon    Dorset    Essex    Essex - Redbridge    Gloucestershire    Hertfordshire (South West)    Hertfordshire (Other and North London)    Kent    Lancashire & Cumbria    Lincolnshire    Medway    Northern Ireland    Surrey (Sutton, Kingston and Wandsworth)    Trafford    Warwickshire    Wiltshire    Wirral    Yorkshire BEYOND 11 PLUS    Beyond 11 Plus - General    GCSEs    6th Form    University