v******y
发帖数: 22 | 1 Q:
You have eight balls all of the same size. Seven of them weigh the same, and
one of them weighs slightly more. How can you find the ball that is heavier
by using a balance and only two weighings?
Someone Answering:
The bigger question: Why the fuck do I have eight balls? | k********y
发帖数: 3586 | 2
and
heavier
答案是？
【在 v******y 的大作中提到】
: Q:
: You have eight balls all of the same size. Seven of them weigh the same, and
: one of them weighs slightly more. How can you find the ball that is heavier
: by using a balance and only two weighings?
: Someone Answering:
: The bigger question: Why the fuck do I have eight balls?
| s**l
发帖数: 11983 | 3 first: 3:3
if equal, then try the left 1:1
otherwise, pick the three which are lighter, then pick any two from
these three on the balance. if equal, then the third one is, otherwise,
you have got the answer | a*****a
发帖数: 82 | 4 got to say you're smart.
【在 s**l 的大作中提到】
: first: 3:3
: if equal, then try the left 1:1
: otherwise, pick the three which are lighter, then pick any two from
: these three on the balance. if equal, then the third one is, otherwise,
: you have got the answer
| c********h
发帖数: 7827 | 5 22,22
33,11
44,22
都可以
【在 s**l 的大作中提到】
: first: 3:3
: if equal, then try the left 1:1
: otherwise, pick the three which are lighter, then pick any two from
: these three on the balance. if equal, then the third one is, otherwise,
: you have got the answer
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