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 Post subject: type k question
PostPosted: Tue Aug 14, 2012 5:52 pm 
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Joined: Sat Feb 13, 2010 11:02 pm
Posts: 420
Hi,

This question has me stumped please help.

(1 [9] 17) (15 [14] 8 ) (4 [?]21)

options are

22, 14, 28, 44, 16

and the answer is 16.


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 Post subject: Re: type k question
PostPosted: Tue Aug 14, 2012 5:58 pm 
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Joined: Wed Jan 11, 2006 7:10 pm
Posts: 8200
Location: Buckinghamshire
Add the first and third numbers then take away 9. Tricky because the first set looks as though it is simply add both then divide by 2.


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 Post subject: Re: type k question
PostPosted: Tue Aug 14, 2012 6:30 pm 
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Joined: Sat Feb 13, 2010 11:02 pm
Posts: 420
Thank you, it had me totally stumped but now that you have explained it, it sounds so simple.


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