From: Peter Szinek <peter@...>
Date: 2007-01-27T01:10:51+09:00
Subject: Re: Learn by repetition - ruby exercises and answers?

> If you know of any sites or books close to what I'm after, and minus
> what I've already listed, please post them.

Some time ago I have solved a few exercises (15 to be exact - well some 
of them have subexercises, so...) in Ruby.  It's not much, but at least 
it has "easier-to-harder" and "question-answer" properties you  are 
looking for.

http://www.rubyrailways.com/implementing-15-exercises-for-learning-a-new-programming-language/

HTH,
Peter

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http://www.rubyrailways.com