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 Post subject: answer to number sequence?Posted: Thu Oct 07, 2010 8:24 pm

Joined: Mon Jul 19, 2010 12:30 pm
Posts: 126
I am stuck on this sequence any help appreciated.

1 2 3 4 9 12 ( )

By the way the answer given is 36.

stressedparent

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 Post subject: Re: answer to number sequence?Posted: Thu Oct 07, 2010 9:34 pm

Joined: Mon May 19, 2008 9:39 pm
Posts: 506
Longer sequence of numbers - therefore look at every other one to find the pattern - in this case :

1x3 = 3
3x3 = 9
3x9 = 36

I think??!!

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 Post subject: Re: answer to number sequence?Posted: Thu Oct 07, 2010 9:43 pm

Joined: Mon Aug 30, 2010 5:02 pm
Posts: 625
3x9 is 27

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 Post subject: Re: answer to number sequence?Posted: Thu Oct 07, 2010 9:45 pm

Joined: Fri Oct 30, 2009 11:08 pm
Posts: 1218
I dont understand it. My only thought is that 1 2 3 4 9 12 are all factors of 36

but next in the sequence would be 18! Oh and 6 is missing! so I guess not.

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 Post subject: Re: answer to number sequence?Posted: Thu Oct 07, 2010 9:58 pm

Joined: Mon Aug 30, 2010 5:02 pm
Posts: 625
maybe there is a type in the question paper

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 Post subject: Re: answer to number sequence?Posted: Thu Oct 07, 2010 11:10 pm

Joined: Fri Sep 15, 2006 8:51 am
Posts: 8080
stressedparent wrote:
I am stuck on this sequence any help appreciated.

1 2 3 4 9 12 ( )

By the way the answer given is 36.

stressedparent

mmmm ... good one! agree it might be a typo,

3*4=12 + 4*9=36 - so maybe something along that line
or: the cubes are there: 1,4,9,...,36 missing out 25......

mind addled - colleagues watching "matrix revolutions"... ugh!

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 Post subject: Re: answer to number sequence?Posted: Fri Oct 08, 2010 8:57 am

Joined: Mon Jun 18, 2007 2:32 pm
Posts: 6938
Location: East Kent
been looking at this one for ages, still stumped

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 Post subject: Re: answer to number sequence?Posted: Fri Oct 08, 2010 9:06 am

Joined: Thu Dec 18, 2008 10:12 am
Posts: 3758
Location: Berkshire
Me too....it has to be 27, surely ?

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 Post subject: Re: answer to number sequence?Posted: Fri Oct 08, 2010 9:34 am

Joined: Wed Jul 07, 2010 11:04 am
Posts: 455
I haven't been able to get this one either So glad I'm not the only one Hopefully someone can put us all straight later on

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Everyone is a genius, but if you judge a fish by its ability to climb a tree, it will think it is stupid.

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 Post subject: Re: answer to number sequence?Posted: Fri Oct 08, 2010 10:47 am

Joined: Mon Jul 19, 2010 12:30 pm
Posts: 126
Thanks for all of you for trying ,I will have to accept it must be an error.

stressedparent

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stressedparent

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