It is currently Thu Dec 08, 2016 10:03 pm

 All times are UTC

 Page 1 of 1 [ 6 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: Walsh-paper 6, question 70.Posted: Sun Sep 23, 2012 6:11 pm

Joined: Fri Sep 16, 2011 12:54 pm
Posts: 84
(16(12)3) (49(14)2)
(100(?)3)

The answer is 30, can anyone explain this? Thanks.

Top

 Post subject: Re: Walsh-paper 6, question 70.Posted: Sun Sep 23, 2012 6:26 pm

Joined: Mon Apr 09, 2012 7:56 am
Posts: 125
Bit tricky

Square root the number on the left and then multiply by number on right.

sq root of 16 is 4 X 3 = 12
sq root of 49 is 7 X 2 = 14
sq root of 100 = 10 X 3 = 30

Top

 Post subject: Re: Walsh-paper 6, question 70.Posted: Sun Sep 23, 2012 6:27 pm

Joined: Sat Oct 15, 2011 8:02 am
Posts: 40
12/3 = 4 then this number squared = 16
14/2= 7 again squared =49

Therefore middle number must be 30 as divided by 3= 10 and 10x10 = 100

I think I've explained that ( to myself anyway )

Top

 Post subject: Re: Walsh-paper 6, question 70.Posted: Sun Sep 23, 2012 6:33 pm

Joined: Fri Sep 16, 2011 12:54 pm
Posts: 84
Many thanks to you both. I can't believe that there are many 10 year olds that will get that. Certainly not within the allocated time of the test. One of those leave it until the end and have a guess!

Top

 Post subject: Re: Walsh-paper 6, question 70.Posted: Sun Sep 23, 2012 6:42 pm

Joined: Mon Apr 09, 2012 7:56 am
Posts: 125
Dixon wrote:
Many thanks to you both. I can't believe that there are many 10 year olds that will get that. Certainly not within the allocated time of the test. One of those leave it until the end and have a guess!

I've found these ones tricky..Ds sometimes gets the last one wrong in these on the paper..same with the number sequences

Top

 Post subject: Re: Walsh-paper 6, question 70.Posted: Sun Sep 23, 2012 9:00 pm

Joined: Fri Sep 15, 2006 8:51 am
Posts: 8113
Possibly the first three numbers 16 49 and 100 will ring a bell as being squares.... hopefully they get the rest fro there

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 6 posts ]

 All times are UTC

#### Who is online

Users browsing this forum: No registered users and 1 guest

 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
Privacy Policy | Refund Policy | Disclaimer | Copyright © 2004 – 2016