# The Grey Labyrinth is a collection of puzzles, riddles, mind games, paradoxes and other intellectually challenging diversions. Related topics: puzzle games, logic puzzles, lateral thinking puzzles, philosophy, mind benders, brain teasers, word problems, conundrums, 3d puzzles, spatial reasoning, intelligence tests, mathematical diversions, paradoxes, physics problems, reasoning, math, science.

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Ghost Post
Icarian Member

 Posted: Tue Mar 13, 2001 6:24 am    Post subject: 1 just take 1, 2, 3, 4, 5, 6 bars from each of the vaults. so we have 2 equations to solve : 9*x + 10*y = total weight of all 21 bars. and x + y = 21 we solve these equationd to get x and y and we know which vaults are fake and which are pure gold!
QuikSand
Daedalian Member

 Posted: Tue Mar 13, 2001 2:24 pm    Post subject: 2 ... but what happen if the # of fake bars seems to be 10? Are the fakes in 1,3, and 6? Or in 1,4, and 5? Or maybe 2,3, and 5? The post "read here before posting" indicates that some substantial effort has already been made on this puzzle, and that it might be wise to check it out before immediately posting a brand new "solution" the the puzzle. Give the puzzle some thought, and then when you think you have something that works, go check out the long thread on this puzzle to see what the rest of the forum has come up with. Enjoy!
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