Comments on: Google Brain-teaser http://www.dennyburk.com/google-brain-teaser/ A commentary on theology, politics, and culture Fri, 10 Feb 2012 19:50:51 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Peter Sewell http://www.dennyburk.com/google-brain-teaser/#comment-53983 Peter Sewell Mon, 23 Nov 2009 03:09:09 +0000 http://www.dennyburk.com/google-brain-teaser/#comment-53983 "their interview questions are like taking the GRE." ha ha ha ha ha “their interview questions are like taking the GRE.” ha ha ha ha ha

]]> By: Don Johnson http://www.dennyburk.com/google-brain-teaser/#comment-53973 Don Johnson Sun, 22 Nov 2009 20:18:21 +0000 http://www.dennyburk.com/google-brain-teaser/#comment-53973 You can even do it with 9 balls. You can even do it with 9 balls.

]]> By: jeff miller http://www.dennyburk.com/google-brain-teaser/#comment-53960 jeff miller Sat, 21 Nov 2009 23:34:53 +0000 http://www.dennyburk.com/google-brain-teaser/#comment-53960 I got it. Stone is my witness :) I got it. Stone is my witness :)

]]> By: Alex Chediak http://www.dennyburk.com/google-brain-teaser/#comment-53952 Alex Chediak Sat, 21 Nov 2009 18:47:57 +0000 http://www.dennyburk.com/google-brain-teaser/#comment-53952 My brother-in-law works for Google. He can attest to the challenge of their interviews! My brother-in-law works for Google. He can attest to the challenge of their interviews!

]]> By: Mark http://www.dennyburk.com/google-brain-teaser/#comment-53942 Mark Sat, 21 Nov 2009 05:49:17 +0000 http://www.dennyburk.com/google-brain-teaser/#comment-53942 Yeah. My mind isn't supposed to work with these types of questions. Yeah. My mind isn’t supposed to work with these types of questions.

]]> By: Doug http://www.dennyburk.com/google-brain-teaser/#comment-53937 Doug Fri, 20 Nov 2009 17:46:08 +0000 http://www.dennyburk.com/google-brain-teaser/#comment-53937 Very good grasshopper. My brain got tired trying to figure it out. Very good grasshopper. My brain got tired trying to figure it out.

]]> By: Joshua http://www.dennyburk.com/google-brain-teaser/#comment-53936 Joshua Fri, 20 Nov 2009 16:45:49 +0000 http://www.dennyburk.com/google-brain-teaser/#comment-53936 This is a classic Computer Science question. I came across it three times at my last job (Meditech, not Google). So, yes, now I finally get this question right :) This is a classic Computer Science question. I came across it three times at my last job (Meditech, not Google). So, yes, now I finally get this question right :)

]]> By: Denny Burk http://www.dennyburk.com/google-brain-teaser/#comment-53935 Denny Burk Fri, 20 Nov 2009 15:43:54 +0000 http://www.dennyburk.com/google-brain-teaser/#comment-53935 <strong>1st Weighing</strong> Take 6 of the balls and weigh them 3 on one side and 3 on the other. <strong>2nd Weighing</strong> If both sides of three are equal, then weigh the remaining two balls to see which one is heavier. If one set of three is heavier than the other set of three, then select two balls from the heavier set to weigh. If one of the two is heavier than the other, then you've found your ball. If the two balls are equal, then you know that the third unweighed ball is the heaviest. 1st Weighing
Take 6 of the balls and weigh them 3 on one side and 3 on the other.

2nd Weighing
If both sides of three are equal, then weigh the remaining two balls to see which one is heavier.

If one set of three is heavier than the other set of three, then select two balls from the heavier set to weigh.

If one of the two is heavier than the other, then you’ve found your ball.

If the two balls are equal, then you know that the third unweighed ball is the heaviest.

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