perplexus.info :: Just Math : A four number puzzle

A four number puzzle (Posted on 2019-06-15)

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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re(3): proposed solution -- higher value

| Comment 4 of 5 |

Using an approximation to 2x+2sqrt(x) = 2019

31*978+978*979+31*978 = 1018098

Posted by broll on 2019-06-16 22:41:56

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