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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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Hints/Tips re: Solution CORRECTED | Comment 11 of 15 |
(In reply to Solution by Strahinja)

".........a0+a2+a4+...+a2i=a1+a3+a5+a(2i+1) " - ????
NOT SO..THE SUMS MIGHT DIFFER BY A MULTIPLE OF 11.
Thus we get A+B=11 and the number is 7744, i.e. 88 squared
ady
  Posted by Ady TZIDON on 2004-07-28 21:39:26

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