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Two Digit Integers (Posted on 2006-07-14) Difficulty: 4 of 5
Find all possible two digit positive integers N for which the sum of digits of 10N - N is divisible by 170.

See The Solution Submitted by K Sengupta    
Rating: 3.0000 (2 votes)

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Computer Solution | Comment 1 of 11
Mathematica figured it out in no time

20,39,58,77,96

  Posted by Daniel on 2006-07-14 13:04:05
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