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wu :: forums    riddles    easy (Moderators: ThudnBlunder, william wu, Icarus, Eigenray, Grimbal, towr, SMQ)    How did the prisonor escape? « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: How did the prisonor escape?  (Read 1121 times) sanaya Junior Member     Gender: Posts: 64 How did the prisonor escape?   « on: Sep 3rd, 2013, 3:04am » Quote Modify A king one day announced that he would set a prisoner free.   The condition laid by him was that the prisoner would have to pick a blue color marble from a jar of two marbles.     The king however decided to cheat. He put two black color marbles in the jar. The prisoner saw him do this.   Assuming that the jar was not transparent, was glued to the table and the prisoner was mute, find out how he escaped.   IP Logged Best riddles gotit Uberpuzzler     Gender: Posts: 804 Re: How did the prisonor escape?   « Reply #1 on: Sep 3rd, 2013, 7:27am » Quote Modify The idea is to take one stone out of the jar and discard it, thus choosing the stone which is still in the jar. Since the discarded stone will be black, it will be assumed that the one inside the jar is blue. IP Logged All signatures are false. sanaya Junior Member     Gender: Posts: 64 Re: How did the prisonor escape?   « Reply #2 on: Sep 4th, 2013, 9:51pm » Quote Modify Gotit elaborate a little more. How would he discard it without letting others see because as soon as  other people see him discarding the black one, he would remain imprisoned. IP Logged Best riddles towr wu::riddles Moderator Uberpuzzler Some people are average, some are just mean.     Gender: Posts: 13730 Re: How did the prisonor escape?   « Reply #3 on: Sep 4th, 2013, 10:10pm » Quote Modify He could swallow the marble. IP Logged Wikipedia, Google, Mathworld, Integer sequence DB rmsgrey Uberpuzzler     Gender: Posts: 2873 Re: How did the prisonor escape?   « Reply #4 on: Sep 5th, 2013, 5:25am » Quote Modify There are two major options:   1) Expose the fraud   2) Reverse the fraud by causing the other marble to be the one examined   The first doesn't set you free, and the king may argue that you didn't meet the stated condition for release. The second is harder to arrange. IP Logged jollytall Senior Riddler     Gender: Posts: 585 Re: How did the prisonor escape?   « Reply #5 on: Sep 5th, 2013, 10:07am » Quote Modify Ask the miller's daughter. IP Logged Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------=> easy   - medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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