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A four number puzzle (Posted on 2019-06-15) Difficulty: 3 of 5
A, B, C, and D are four positive integers whose sum is 2019. What are the largest and smallest values that A*B+B*C+C*D can be?

See The Solution Submitted by Brian Smith    
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  Subject Author Date
re(2): proposed solutionxdog2019-06-17 10:37:49
Some Thoughtsre(3): proposed solution -- higher valuebroll2019-06-16 22:41:56
re(2): proposed solution -- higher valueCharlie2019-06-16 21:33:26
re: proposed solutionBrian Smith2019-06-16 21:22:59
proposed solutionxdog2019-06-16 08:46:45
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