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 Post subject: Tricky Numbers Please
PostPosted: Mon Oct 01, 2012 5:30 pm 
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Joined: Mon Apr 09, 2012 7:56 am
Posts: 125
( 21 (30) 1) (20 (11) 10) (16 ( ) 2)


( 5 (3) 2) (26 (28) 6) (22 () 12)

Thanks !


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PostPosted: Mon Oct 01, 2012 5:54 pm 
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Location: Warwickshire
[5 (3) 2] ... [26 (28) 6] ... [22 (30) 12]

add the outer numbers, then subtract 4
5+2-4=3
26+6-4=28
22+12-4=30


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PostPosted: Mon Oct 01, 2012 5:57 pm 
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okanagan

Thanks a lot. Just couldn't see it !


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PostPosted: Mon Oct 01, 2012 5:58 pm 
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Joined: Mon Aug 22, 2011 8:20 pm
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Location: Warwickshire
[21 (30) 1] ... [20 (11) 10] ... [16 (23) 2]

1st number - 2x2nd number + 11
21-2+11=30
20-20+11=11
16-4+11=23


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PostPosted: Mon Oct 01, 2012 6:03 pm 
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Thanks again !


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PostPosted: Mon Oct 01, 2012 9:00 pm 
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Joined: Mon Jun 11, 2012 8:51 pm
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Another possible answer to:

21 (30) 1 20 (11) 10 16 (?) 2

21/1=21 21+9=30

20/10=2 2+9=11

so 16/2=8 8+9=17

I really dislike these ones where there are 2 or more valid answers...


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