Timeline for Thirty genuine and seventy fake coins
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 20, 2015 at 15:00 | comment | added | ghosts_in_the_code | @Arkku You're right. I meant 70. | |
| Sep 20, 2015 at 14:59 | history | edited | ghosts_in_the_code | CC BY-SA 3.0 |
edited body
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| Sep 18, 2015 at 20:06 | comment | added | Arkku | Why 71? If it is known that there are only 70 fake coins, once all have been identified (in the worst case), there is no need to weigh anymore since it was given that the rest are all genuine (the goal was to identify a genuine coin, not to weigh it). | |
| Sep 18, 2015 at 18:41 | comment | added | Kevin | Guess I needed to reread your answer, you were talking about weighing multiple coins on each pan. | |
| Sep 18, 2015 at 18:40 | comment | added | Kevin | I think you need to reread the question. If pans are equal, they are both real. | |
| Sep 18, 2015 at 15:32 | history | answered | ghosts_in_the_code | CC BY-SA 3.0 |