Weird interview question from MS

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Published on 2010-04-01T02:00:59Z Indexed on 2010/04/01 2:03 UTC
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reasoning

There are two numbers, which are both between 1 and 30 inclusive. Person A knew the addition of the two numbers; Person B knew the multiplication of the two numbers;

A said:"do you know what numbers are they?" B replied:"I don't know, do you know?" A:"I don't know either" then B said:"so, I knew already" then A said:"I knew either"

What are the two numbers?

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