According to my solution....probablity of choosing any bowl is 1/2
So,
if bowl with only 1 white marble is chosen...we wll definitely get white so
P=1
if other bowl chosen..it consists of 49 white & 50 black marbles...so
probablity of drawing a white ball is approx 1/2.
Hence the total probablity of drawing a white ball is
P(W) = (1/2)(1) + (1/2)*(1/2)
= 3/4
On Fri, Jun 3, 2011 at 2:38 PM, D!leep Gupta <dileep.smil...@gmail.com>wrote:
>
> all white marble in one bowl... all black in other bowl..
>
> On Fri, Jun 3, 2011 at 1:51 PM, Naveen Kumar
> <naveenkumarve...@gmail.com>wrote:
>
>> I think "*mix the bowls around"* will shift layers too.
>>
>>
>> On Fri, Jun 3, 2011 at 1:43 PM, Pragya lal <sheelub...@gmail.com> wrote:
>>
>>> u r blindfold , so how can u b so sure that u will be choosing bowl
>>> having one white marble ? u can choose other bowl also and in that case
>>> probability of picking white marble is 1/2.
>>>
>>> where as in my case it doesnt matter which bowl i choose... i will be
>>> picking white marble only even if i am blindfold so in every case higher
>>> probability of wining life is there..
>>>
>>>
>>> On Fri, Jun 3, 2011 at 1:35 PM, bhavana <bhavana....@gmail.com> wrote:
>>>
>>>> there is no concept of top & bottom layer bcoz it is assumed that
>>>> probablity of drawing every marble is same.
>>>>
>>>> Please read my solution carefully...i wrote only 1 white marble in 1
>>>> bowl...rest all marbles(i.e. rest white & all black) in the other bowl..
>>>>
>>>>
>>>> On Fri, Jun 3, 2011 at 1:28 PM, Pragya lal <sheelub...@gmail.com>wrote:
>>>>
>>>>> @bhavana-
>>>>> what if u choose bowl full of black marbles when u r blindfold ?? in
>>>>> that case u will surely die...
>>>>> According to me, i will place all white marbles in top layer of both
>>>>> bowls and all black marbles at below layer in both bowl. so that when i am
>>>>> blindfold whichever the bowl i will choose i will pickup white marble
>>>>> only,
>>>>> since it is on top layer of both the bowl.
>>>>>
>>>>>
>>>>> On Fri, Jun 3, 2011 at 12:55 PM, bhavana <bhavana....@gmail.com>wrote:
>>>>>
>>>>>> 1 white marble in one bowl...rest all marbles in the other bowl..
>>>>>>
>>>>>>
>>>>>> On Fri, Jun 3, 2011 at 12:44 PM, Lavesh Rawat <lavesh.ra...@gmail.com
>>>>>> > wrote:
>>>>>>
>>>>>>> *life or death Puzzle
>>>>>>> *
>>>>>>> *
>>>>>>> *
>>>>>>> **
>>>>>>> *You are a prisoner sentenced to death. The Emperor offers you a
>>>>>>> chance to live by playing a simple game. He gives you 50 black marbles,
>>>>>>> 50
>>>>>>> white marbles and 2 empty bowls. He then says, 'Divide these 100 marbles
>>>>>>> into these 2 bowls. You can divide them any way you like as long as you
>>>>>>> use
>>>>>>> all the marbles. Then I will blindfold you and mix the bowls around. You
>>>>>>> then can choose one bowl and remove ONE marble. If the marble is WHITE
>>>>>>> you
>>>>>>> will live, but if the marble is BLACK... you will die.'
>>>>>>>
>>>>>>> How do you divide the marbles up so that you have the greatest
>>>>>>> probability of choosing a WHITE marble?
>>>>>>> *
>>>>>>> *
>>>>>>> *
>>>>>>>
>>>>>>> *Update Your Answers at* : Click
>>>>>>> Here<http://dailybrainteaser.blogspot.com/2011/06/life-or-death-3-june.html?lavesh=lavesh>
>>>>>>>
>>>>>>>
>>>>>>> Solution:
>>>>>>> Will be updated after 1 day
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>>
>>>>>>> "Never explain yourself. Your friends don’t need
>>>>>>> it and your enemies won’t believe it" .
>>>>>>>
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>>
>>
>> --
>> Cheers
>> Naveen Kumar
>>
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>
>
>
> --
> Dileep Kumar Gupta
> B-Tech 2nd year
> Computer Science n Engineering
> MNNIT Allahabad
>
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