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#1 2014-04-30 22:07:02

picon
Member
Registered: 2014-04-30
Posts: 1

Number in the series

I want to know what next two numbers will be in the series

8,15,10,13,12,11,14,9,16,7,___ ,   ___

Regards

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#2 2014-04-30 22:46:06

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,426

Re: Number in the series

hi picon,

Welcome to the forum.

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#3 2014-05-01 01:39:21

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,238

Re: Number in the series

Hi picon;

If you pair the numbers off you see that each pair sums to 23. The first number appears to be going up by 2 so I think the next 2 are 18 and 5.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#4 2014-05-01 01:53:26

phrontister
Real Member
From: The Land of Tomorrow
Registered: 2009-07-12
Posts: 3,848

Re: Number in the series

Hi picon,

Last edited by phrontister (2014-05-01 16:00:51)


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