hopeso009 Posted April 21, 2009 Posted April 21, 2009 (edited) Here comes the story_____________________________________________________________ An old man... ordered 6 golden bricks When he receives the bricks, he learns that one of the bricks is not pure gold (mixed with other alloy) The special gold brick looks exactly the same with others but lighter in weight. Can you kindly help the old man to find the special gold brick by using the balance not more than 2 times? . Edited August 1, 2010 by hopeso009
keetong Posted April 21, 2009 Posted April 21, 2009 This is my idea, he put two on each if one side goes down, he halfs the two and puts one on each. If they stay the same he puts the other two he hasn't used on two different palforms and he should find it . So there is two ways. Sorry for getting it quickly. Try and work it out yourself
Hewman Posted April 21, 2009 Posted April 21, 2009 (edited) And one further way is to put three on each side of the scale, the lighter side will contain the light brick. From this light side, take any two bricks, if the bricks weigh the same, the one left over is the light brick, if bricks don't way the same, then obviously the lighter brick is the light one. Edited April 21, 2009 by hewman
keetong Posted April 21, 2009 Posted April 21, 2009 Well that was easy, though it did say beginner though.
Hewman Posted April 21, 2009 Posted April 21, 2009 Well that was easy, though it did say beginner though. Now for the intermediate level challenge, of course if it comes and I can't solve it, it is because I'm too busy, not that I'm too stupid.
keetong Posted April 21, 2009 Posted April 21, 2009 Now for the intermediate level challenge, of course if it comes and I can't solve it, it is because I'm too busy, not that I'm too stupid. If that wasy beginner and next is intermediate, I'm sure we can solve it. We should be on expert buy now
Algernon Posted April 21, 2009 Posted April 21, 2009 Simple really: Put three gold bricks on each side of the scale, and find the lighter one. Then take the three from the group that was lightest and put one on each side of the scale. If one of them on the scale is lighter, that's the fake brick. If they're both the same, the one left over is the fake brick.
Hewman Posted April 21, 2009 Posted April 21, 2009 Simple really: Put three gold bricks on each side of the scale, and find the lighter one. Then take the three from the group that was lightest and put one on each side of the scale. If one of them on the scale is lighter, that's the fake brick. If they're both the same, the one left over is the fake brick. Simple really, read the answer 4 posts up and put it in your own words
hopeso009 Posted April 21, 2009 Author Posted April 21, 2009 And one further way is to put three on each side of the scale, the lighter side will contain the light brick. From this light side, take any two bricks, if the bricks weigh the same, the one left over is the light brick, if bricks don't way the same, then obviously the lighter brick is the light one. Simple really: Put three gold bricks on each side of the scale, and find the lighter one. Then take the three from the group that was lightest and put one on each side of the scale. If one of them on the scale is lighter, that's the fake brick. If they're both the same, the one left over is the fake brick. Thanks for the quick and correct answer from both of you This is my idea, he put two on each if one side goes down, he halfs the two and puts one on each. If they stay the same he puts the other two he hasn't used on two different palforms and he should find it . So there is two ways. Sorry for getting it quickly. Try and work it out yourself No need to sorry Thank you for quick alternative answer but funny is ... can't read you reply....they show in black.... intended to show in black (?_?) interesting anyway... Soon I will give you guys the medium level using the same device....
ILikePi Posted April 21, 2009 Posted April 21, 2009 (edited) but funny is ... can't read you reply....they show in black....intended to show in black (?_?) interesting anyway... To see the stuff in black, you can just click (and hold) and drag your mouse cursor across it. This is called "highlighting" it. This was what he said in the black stuff: This is my idea, he put two on each if one side goes down, he halfs the two and puts one on each. If they stay the same he puts the other two he hasn't used on two different palforms and he should find it. Edited April 21, 2009 by ILikePi
keetong Posted April 21, 2009 Posted April 21, 2009 but funny is ... can't read you reply....they show in black....intended to show in black (?_?) interesting anyway... You highlight over to get it, I put it in spoiler tags. I wanted people to work it out for themselves.
Sandy Posted April 22, 2009 Posted April 22, 2009 but funny is ... can't read you reply....they show in black....intended to show in black (?_?) interesting anyway... Haha, there's an IQ question for you... Smartypants!
hopeso009 Posted April 22, 2009 Author Posted April 22, 2009 Haha, there's an IQ question for you... Smartypants! oic
Recommended Posts