It is currently Fri Feb 15, 2019 7:25 pm

 All times are UTC

 Page 1 of 1 [ 5 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: Help with maths questions - GL pack 3Posted: Sat Jun 30, 2018 11:39 am

Joined: Thu Mar 06, 2014 1:50 pm
Posts: 160
Can anyone help in explaining the following please?
y is 1/2 of x

Which of the following is incorrect?
x = 2y
y = 2x Answer ( Dd thought this was correct)
y = x/2
x/y = 2
y/x = 1/2

Top

 Post subject: Re: Help with maths questions - GL pack 3Posted: Sat Jun 30, 2018 11:54 am

Joined: Mon Oct 21, 2013 7:59 pm
Posts: 5324
If y is half of x, x is obviously bigger than y.

Therefore y= 2x cannot be right as 2x effectively means 2 times x.

If x is bigger than y already, multiplying it by 2 is going to make it even bigger, therefore y cannot possibly = 2x!!!

Top

 Post subject: Re: Help with maths questions - GL pack 3Posted: Sat Jun 30, 2018 12:15 pm

Joined: Thu Mar 06, 2014 1:50 pm
Posts: 160
Thank you! Will show to Dd now

Top

 Post subject: Re: Help with maths questions - GL pack 3Posted: Sat Jun 30, 2018 12:44 pm

Joined: Mon Feb 12, 2007 1:21 pm
Posts: 16126
Try thinking in numbers as well. y is 1/2 of x is the same as 5 is half of 10 ...

y .... x
5 .....10

so then test out.

Top

 Post subject: Re: Help with maths questions - GL pack 3Posted: Sat Jun 30, 2018 3:51 pm

Joined: Thu Mar 06, 2014 1:50 pm
Posts: 160
Thank you Guest55 - makes it easier to understand like that!

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 5 posts ]

 All times are UTC

#### Who is online

Users browsing this forum: No registered users and 2 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
Privacy Policy | Refund Policy | Disclaimer | Copyright © 2004 – 2019