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Pumpkins 6 (Posted on 2016-01-22) Difficulty: 4 of 5
Much like the third Pumpkins puzzle six pumpkins, each having a different weight, are weighed two at a time in all 15 sets of two. This time exactly four pairs of duplicate values occurred. Those four values are 60, 100, 110, and 120 pounds.

How much did each individual pumpkin weigh?

See The Solution Submitted by Brian Smith    
Rating: 4.0000 (1 votes)

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re: Analytical solution | Comment 3 of 11 |
(In reply to Analytical solution by Steve Herman)

Nice work, but how can you be sure that your statement "1) a+b and a+c are both less than all other pairs, so 60 must = a+d = b+c.  Therefore, d = 60-a and c = 60-b" is true.  It could have been the case that a+e=60 with one of b+c, b+c, or c+d being the other pair.
  Posted by Brian Smith on 2016-01-23 11:06:42

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