Demon Type K question
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Demon Type K question
I'm the first to admit that maths isn't my strong point, but...either there's a mistake in this question or I'm losing it!
(6 [12] 18) (7 [19] 12)
(8 [___] 12)
The answer is supposed to be 10. Which you would get by adding the numbers together and dividing by 2 - this works for the first pair. But it doesn't work for the second pair!
Any ideas welcome!
(6 [12] 18) (7 [19] 12)
(8 [___] 12)
The answer is supposed to be 10. Which you would get by adding the numbers together and dividing by 2 - this works for the first pair. But it doesn't work for the second pair!
Any ideas welcome!
Marylou
Re: Demon Type K question
Hi,
I asked this question a few months ago.
http://www.elevenplusexams.co.uk/forum/ ... =3&t=16177" onclick="window.open(this.href);return false;
I thought I was going potty and missing something obvious - but it was nice to know that it wasn't only me.
I asked this question a few months ago.
http://www.elevenplusexams.co.uk/forum/ ... =3&t=16177" onclick="window.open(this.href);return false;
I thought I was going potty and missing something obvious - but it was nice to know that it wasn't only me.
Re: Demon Type K question
Thanks for replies and for the link - nice to have confirmation that I have a few marbles left!
If you change the number(s) in the second set so that they add up to 38 (e.g. 7 and 31) then the sum works.
This is the second mistake we've spotted in one day - earlier we found an error in a Type N from the same source!
If you change the number(s) in the second set so that they add up to 38 (e.g. 7 and 31) then the sum works.
This is the second mistake we've spotted in one day - earlier we found an error in a Type N from the same source!
Marylou