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Divisible by 28 (Posted on 2014-12-21) Difficulty: 3 of 5
Each of a, b and c is a positive integer with a ≤ b ≤ c ≤ 70.

Find total number of triplets (a, b, c) such that a2 + b2 + c2 is divisible by 28.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
re(2): possible solution.....TNXAdy TZIDON2014-12-21 23:46:36
Solutioncomputer solutionCharlie2014-12-21 21:08:21
re: possible solutionDej Mar2014-12-21 18:08:34
Solutionpossible solutionAdy TZIDON2014-12-21 12:13:32
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