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Stuck
Posted: Wed Oct 26, 2011 11:31 am
by Flosi
Hi guys
Question is.
21 (26) 8
27 (36) 9
24 ( ) 6
Answer is 36
Does anyone know how we arrive at this answer?
Thanks.
Re: Stuck
Posted: Wed Oct 26, 2011 11:34 am
by Red
21-8=13; 13*2=26
27-9=18; 18*2=36
24-6=18; 18*2=36
Hope this is right!
Re: Stuck
Posted: Wed Oct 26, 2011 11:41 am
by yoyo123
I would go with red's solution
Re: Stuck
Posted: Wed Oct 26, 2011 6:47 pm
by Orson
Yes. Left number minus right number then double your answer.
Re: Stuck
Posted: Thu Oct 27, 2011 11:36 am
by Flosi
Many thanks all.
Sorry for the belated reply. My daughter is doing Bucks exam today!
Flosi
Re: Stuck
Posted: Thu Nov 03, 2011 9:49 pm
by senthi
i ask my DS to do this questions she done this way
21+21=42 , 8+8=16,42-16=26
27+27=54 , 9+9=18 , 54-18=36
24+24=48 , 6+6=12 ,48-12=36
is this a right way to do aswell?thankyou.
Re: Stuck
Posted: Thu Nov 03, 2011 10:34 pm
by Stocky
I would go with red's method as in our county (lincs), these questions have to be completed in 2 stages
Re: Stuck
Posted: Fri Nov 04, 2011 8:45 am
by patricia
Dear Senthi
Although your method works it is not an efficient way of working out the answer. Reds version is less time consuming.
Dear Stocky
These types of questions when set by GL Assessment as the test provider, can be 1, 2 or 3 operations/stages.
Patricia
Re: Stuck
Posted: Fri Nov 04, 2011 9:37 am
by Stocky
ooh cheers Patricia, I've been misadvised along the way, as was definitely told 2 stages. Whilst my DD has just passed, my DS sits in Sep 12 so that will help with our prep. Thanks again
Re: Stuck
Posted: Fri Nov 04, 2011 2:19 pm
by senthi
thank you patricia.