Ten bags of gold: Difference between revisions
Jump to navigation
Jump to search
Oscarlevin (talk | contribs) Created page with 'Here is a weighing puzzle I remember from Mind-quest. ==Puzzle== You have ten bags filled with ten gold coins each -- or so you thought. A mysterious note arrives informing yo…' |
Oscarlevin (talk | contribs) No edit summary |
||
| Line 6: | Line 6: | ||
[[Category: Weighing puzzles]] | [[Category: Weighing puzzles]] | ||
Revision as of 12:10, 28 May 2010
Here is a weighing puzzle I remember from Mind-quest.
Puzzle
You have ten bags filled with ten gold coins each -- or so you thought. A mysterious note arrives informing you that one of the bags contains fake coins, which weigh slightly less than the real coins. In fact, each real coin weighs one ounce, while the fake coins each weigh 0.9 ounces. You happen to have a scale which can display the weight accurate to a tenth of an ounce. However, the batteries in the scale are almost out, so you can only use it once. How can you find the bag of fake gold?