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A square (Posted on 2004-06-25) Difficulty: 2 of 5
A number AABB is the square of an integer. Find this integer, aided by pen and paper. No other calculating aids allowed.

See The Solution Submitted by Ady TZIDON    
Rating: 3.1429 (7 votes)

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Question re: solution | Comment 7 of 15 |
(In reply to solution by Charlie)

Charlie,

In an attempt at provoking additional thought:

Granting the accuracy of your solution, it raises the question of what might bring to one's mind the observation that AABB can be rewritten as 11 x A0B.  That is, what was the thought process behind the observation?

  Posted by ThoughtProvoker on 2004-06-25 17:04:08

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