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**Maburo****Member**- From: Alberta, Canada
- Registered: 2013-01-08
- Posts: 287

I am thinking of a two digit number, AB, such that A x B=AB/2, and A+B=AB/4. What is the number AB?

"Pure mathematics is, in its way, the poetry of logical ideas."

-Albert Einstein

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**scientia****Member**- Registered: 2009-11-13
- Posts: 224

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,291

Hi;

Welcome to the forum.

**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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