ความคิดเห็นที่ 12
คำตอบ ลอกของฝรั่ง ที่เขาเฉลย ดังนี้ครับ ( ผมเติมหมายเลข
ให้ตรงกับปัญหาของพวกเรา )
Man 'A' ( 4) certainly can't see anything, so it's up to the other three.
Man 'B' (3) can't see much of anything either so he doesn't have a clue.
Man 'D'(1) can see the two in front of him if he strains his neck a bit,
but he knows that there are four of them in total with two wearing black
and two wearing white hats. He sees one of each in front of him and
therefore isn't certain which color his is. If he saw two of any color in
front of him, then he'd obviously know his was an opposite color. But there
aren't, there is one of each. So he keeps quiet.
Meanwhile, man 'C'(2) can only see one color in front of him - white - and
he initially isn't certain of his color either. But time goes on and he
figures that if the man behind him saw two of the same color he'd have
yelled out his color by now, but two minutes have gone by and it's quiet
enough to hear a pin drop.
At this time he realizes that since man 'D' isn't certain then he must be
seeing one of each color and it therefore stumped as to his own color.
So..... Man 'C,' after two minutes figures that if man 'D' is seeing one of
each and he (man 'C') can see a white hat in front of him then he is most
certainly wearing a black hat and yells it out....
Man 'C' saves the day.
http://www.travelfurther.net/fun/fsquadansa.htmคำตอบ ลอกของฝรั่ง ที่เขาเฉลย ดังนี้ครับ ( ผมเติมหมายเลข
ให้ตรงกับปัญหาของพวกเรา )
Man 'A' ( 4) certainly can't see anything, so it's up to the other three.
Man 'B' (3) can't see much of anything either so he doesn't have a clue.
Man 'D'(1) can see the two in front of him if he strains his neck a bit,
but he knows that there are four of them in total with two wearing black
and two wearing white hats. He sees one of each in front of him and
therefore isn't certain which color his is. If he saw two of any color in
front of him, then he'd obviously know his was an opposite color. But there
aren't, there is one of each. So he keeps quiet.
Meanwhile, man 'C'(2) can only see one color in front of him - white - and
he initially isn't certain of his color either. But time goes on and he
figures that if the man behind him saw two of the same color he'd have
yelled out his color by now, but two minutes have gone by and it's quiet
enough to hear a pin drop.
At this time he realizes that since man 'D' isn't certain then he must be
seeing one of each color and it therefore stumped as to his own color.
So..... Man 'C,' after two minutes figures that if man 'D' is seeing one of
each and he (man 'C') can see a white hat in front of him then he is most
certainly wearing a black hat and yells it out....
Man 'C' saves the day.
http://www.travelfurther.net/fun/fsquadansa.htm โดยคุณ
:เฉลย จ๊ะ - [18:14:38 1 พ.ย. 2546] |