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Pocket Change (Posted on 2013-07-30) Difficulty: 4 of 5
A friend of mine, Sol announces that he has a number of coins in his pocket that add up to precisely one dollar. When he tells me how many coins he has, I ask if any one of them is a half-dollar. Sol tells me "no". I realize that I can't tell for sure what coins he has, because there are six different combinations that produce precisely one dollar.

How many coins does Sol have in his pocket?

  Submitted by K Sengupta    
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Solution: (Hide)
There are 15 coins in Sol's pocket.

For a detailed explanation, refer to the solution submitted by Charlie here and here.

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re: computer solution - the programCharlie2013-07-30 16:24:39
Solutioncomputer solutionCharlie2013-07-30 16:23:03
re: SolutionCharlie2013-07-30 16:17:16
SolutionSolutionBrian Smith2013-07-30 14:43:39
Some ThoughtsPartial solution?Bryan2013-07-30 14:29:22
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