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9, 99 or 999?


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#11 bonanova

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Posted 27 March 2013 - 02:33 PM

THis cannot be possible, if there are 2 responses you can at most reduce it down to 2 of the 3 possible answers.


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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell

#12 rbn491

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Posted 27 March 2013 - 03:18 PM

1st of all, we must understand that we need to ask him questions that could contain only yes or no as answers, not questions like 'What number are you thinking of?' See if this solution is logically correct..

 

Write down the numbers 9, 99 and 999 in 3 different pieces of paper.. Beneath the no 9, write down the question "Is 1<2?" Beneath the no 99, write down "Is 1>2?" Beneath 999, write down any question for which the person cannot answer a yes or a no with confidence, such as "Will South Africa win the next cricket World Cup?"

 

Now showing these 3 pieces of paper, ask the person, "Is the answer to the question beneath the number in your mind 'yes'?"

Interpretation of his answers: Yes-9; No-99; Dont know/Cant say-999..


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#13 witzar

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Posted 27 March 2013 - 03:43 PM

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#14 vinay.singh84

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Posted 27 March 2013 - 03:58 PM

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#15 ThunderCloud

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Posted 27 March 2013 - 11:01 PM

 

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#16 vinay.singh84

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Posted 28 March 2013 - 03:01 PM

 

 

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#17 ThunderCloud

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Posted 28 March 2013 - 10:39 PM


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#18 weirdo10

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Posted 25 April 2013 - 01:51 AM

first you have to subtract 7 from 999 and you get 992 but what i did is i divided 999/7 and got 142 with a remainder of 5 and then i multiplyed it then added 5 and got 999.   :thanks:  :)


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#19 bonanova

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Posted 25 April 2013 - 07:35 AM

first you have to subtract 7 from 999 and you get 992 but what i did is i divided 999/7 and got 142 with a remainder of 5 and then i multiplyed it then added 5 and got 999.   :thanks:  :)

 

Hi w10, and welcome to the Den.

Hope you enjoy solving puzzles here and posting some of your own.

 

You have a certain "outside the box" approach to solving them. :wacko:


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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell




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