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

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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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,548

hi picon,

Welcome to the forum.

Bob

Children are not defined by school ...........The Fonz

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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,812

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.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,374

Hi picon,

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

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

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