trick of the day [modified]
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I did, and since you know that one is different by the weight there is a solution.
company, work and everything else www.netis.ro
What if the last two didn't match? Now you can't try any more.:sigh:
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I found a solution, through creative googling, and it's way more complex than what I think you're thinking
benjymous wrote:
I found a solution
Can you give us the link...
benjymous wrote:
and it's way more complex than what I think you're thinking
I know very well that it is very complex:)
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I got this trick question today from a friend of mine. I am trying to solve it. i solve 50 percent of the question solved. Note if you have a lot of work don't continue reading cause it will take some time to be solved. The trick question is: You have infront of you 12 eggs. All have the same color the same shape and the same size (you can not diffrentiate between one and the other by just looking at it). 11 of those 12 eggs have the same weight and one differs (either less or more). The question is to find which one of those 12 is the different one. You have a balance and you can use it only 3 times. I will remind you in one important thing that we don't know if the one egg which is different from the others weighs more or less than any of the other 11 eggs. good luck :) if you think you got the solution send your answer to my mail address jamilabkh@gmail.com to leave some time for others to think about it don't post your answers;)
quiteSmart wrote:
either less or more
you're right ... i wasn't paying full atention. if we don't know how the weight difference is (less or more) this is harder :)
company, work and everything else www.netis.ro
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quiteSmart wrote:
either less or more
you're right ... i wasn't paying full atention. if we don't know how the weight difference is (less or more) this is harder :)
company, work and everything else www.netis.ro
:-:cool::cool::rose:
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What if the last two didn't match? Now you can't try any more.:sigh:
Anyway you need to use one of the common eggs (one that has the same weight as the rest of the 10 eggs). And use it as a reference. After that all you have to do is to write down an algorithm with every possible situation there.
company, work and everything else www.netis.ro
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Yes, of the last set which is the odd one out. As you don't know whether it is heavier or lighter you only have a chance of being right. In the last set if the two eggs on the balance (one on each side) are equal it is the one on the table, if the two eggs on the balance are unequal then which is it? It isn't the one on the table, but it is on on the balance - but which? It is still a 50/50 split.
Upcoming events: * Glasgow Geek Dinner (5th March) * Glasgow: Tell us what you want to see in 2007 My: Website | Blog | Photos
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Frank Kerrigan wrote:
nut goop
That would be good to add to the pancake mix, some nuts, making a nut goop. You're full of excellent ideas today! :-D
Upcoming events: * Glasgow Geek Dinner (5th March) * Glasgow: Tell us what you want to see in 2007 My: Website | Blog | Photos
:-D
Blog Have I http:\\www.frankkerrigan.com
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:-:cool::cool::rose:
i got it in 5 minutes but i think i just got lucky... can this really be solved using a mathematical formula? i think i remember someone posting a x=11y+z or something like that... can i give a hint to the solution or is someone else solving? :zzz: :-D
I am a SysAdmin, I battle my own daemons.
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i got it in 5 minutes but i think i just got lucky... can this really be solved using a mathematical formula? i think i remember someone posting a x=11y+z or something like that... can i give a hint to the solution or is someone else solving? :zzz: :-D
I am a SysAdmin, I battle my own daemons.
It has been 3 hours and 15 minutes since this was thread was posted so if you have an answer just post it:rose:
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benjymous wrote:
I found a solution
Can you give us the link...
benjymous wrote:
and it's way more complex than what I think you're thinking
I know very well that it is very complex:)
There might be a complicated solution, but it also seems like there is one that is quite simple. Actually the simple solution would work for up to 18 eggs... Hint, it involves dividing the eggs into 3 groups to start with.
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I got this trick question today from a friend of mine. I am trying to solve it. i solve 50 percent of the question solved. Note if you have a lot of work don't continue reading cause it will take some time to be solved. The trick question is: You have infront of you 12 eggs. All have the same color the same shape and the same size (you can not diffrentiate between one and the other by just looking at it). 11 of those 12 eggs have the same weight and one differs (either less or more). The question is to find which one of those 12 is the different one. You have a balance and you can use it only 3 times. I will remind you in one important thing that we don't know if the one egg which is different from the others weighs more or less than any of the other 11 eggs. good luck :) if you think you got the solution send your answer to my mail address jamilabkh@gmail.com to leave some time for others to think about it don't post your answers;)
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why take the balance, drop them from a high altitude all at once, the one that falls sooner or later is the egg :-)
V. I found a living worth working for, but haven't found work worth living for.
Duh... that won't work. Galileo proved it way back in God-knows-which century. A 100 kg iron ball will fall at the same rate as a 1 kg ball from the same height.
Cheers, Vikram.
"Life isn't fair, and the world is full of unscrupulous characters. There are things worth fighting for, killing for and dying for, but it's a really small list. Chalk it up to experience, let it go, and move on to the next positive experience in your life." - Christopher Duncan.
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Duh... that won't work. Galileo proved it way back in God-knows-which century. A 100 kg iron ball will fall at the same rate as a 1 kg ball from the same height.
Cheers, Vikram.
"Life isn't fair, and the world is full of unscrupulous characters. There are things worth fighting for, killing for and dying for, but it's a really small list. Chalk it up to experience, let it go, and move on to the next positive experience in your life." - Christopher Duncan.
it will if you have no vacuum...
V.
Stop smoking so you can: Enjoy longer the money you save. Moviereview Archive -
it will if you have no vacuum...
V.
Stop smoking so you can: Enjoy longer the money you save. Moviereview ArchiveUnless I'm very mistaken, bodies fall at the same rate towards the Earth (or any other body) at the same rate. The ideal condition is vacuum, but if there is air/wind, it offers significant resistance; which explains why a block of wood falls faster than a feather. I still stand by what I said; I don't understand the point you're trying to make. :~
Cheers, Vikram.
"Life isn't fair, and the world is full of unscrupulous characters. There are things worth fighting for, killing for and dying for, but it's a really small list. Chalk it up to experience, let it go, and move on to the next positive experience in your life." - Christopher Duncan.
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Unless I'm very mistaken, bodies fall at the same rate towards the Earth (or any other body) at the same rate. The ideal condition is vacuum, but if there is air/wind, it offers significant resistance; which explains why a block of wood falls faster than a feather. I still stand by what I said; I don't understand the point you're trying to make. :~
Cheers, Vikram.
"Life isn't fair, and the world is full of unscrupulous characters. There are things worth fighting for, killing for and dying for, but it's a really small list. Chalk it up to experience, let it go, and move on to the next positive experience in your life." - Christopher Duncan.
Vikram A Punathambekar wrote:
Unless I'm very mistaken, bodies fall at the same rate towards the Earth (or any other body) at the same rate.
The department of irrelevant nitpicking would like to point out that while the Earth attracts a BB and a boulder equally the boulder applies a stronger force on the Earth. As a result in a vacuum the boulder will appear to fall faster as observed by someone on the Earth's surface by an infinitesimal rate. You'd need to drop something the size of a large moon to see any visible difference. :rolleyes:
-- Rules of thumb should not be taken for the whole hand.
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Duh... that won't work. Galileo proved it way back in God-knows-which century. A 100 kg iron ball will fall at the same rate as a 1 kg ball from the same height.
Cheers, Vikram.
"Life isn't fair, and the world is full of unscrupulous characters. There are things worth fighting for, killing for and dying for, but it's a really small list. Chalk it up to experience, let it go, and move on to the next positive experience in your life." - Christopher Duncan.
So you mean if I have two object with the same volume, one is a 200KG iron balloon and another inflated with helium, they will fall at the same speed with a acceleration of 9.8 m/s² towards earth?? :-D Lets give a try and drop the two from a second floor, I'll be waiting for the helium balloon to catch it and you will be waiting for the iron balloon. :laugh::) Lets make sure an ambulance is on site.
-- If you think the chess rules are not fair, first beat Anand, Kasparov and Karpov then you can change them. Moral is, don't question the work of others if you don't know the reason why they did it.
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I got this trick question today from a friend of mine. I am trying to solve it. i solve 50 percent of the question solved. Note if you have a lot of work don't continue reading cause it will take some time to be solved. The trick question is: You have infront of you 12 eggs. All have the same color the same shape and the same size (you can not diffrentiate between one and the other by just looking at it). 11 of those 12 eggs have the same weight and one differs (either less or more). The question is to find which one of those 12 is the different one. You have a balance and you can use it only 3 times. I will remind you in one important thing that we don't know if the one egg which is different from the others weighs more or less than any of the other 11 eggs. good luck :) if you think you got the solution send your answer to my mail address jamilabkh@gmail.com to leave some time for others to think about it don't post your answers;)
Drop the eggs from the empire state building on a calm day. Measure the time that take each egg to fall. Compare the two shortest and longest times, the longest times difference will give the unique egg, if the longer difference is form the two first eggs in the list then that egg is heavier, if the longest difference comes from the longest times then that egg is the lighter.
-- If you think the chess rules are not fair, first beat Anand, Kasparov and Karpov then you can change them. Moral is, don't question the work of others if you don't know the reason why they did it.
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So you mean if I have two object with the same volume, one is a 200KG iron balloon and another inflated with helium, they will fall at the same speed with a acceleration of 9.8 m/s² towards earth?? :-D Lets give a try and drop the two from a second floor, I'll be waiting for the helium balloon to catch it and you will be waiting for the iron balloon. :laugh::) Lets make sure an ambulance is on site.
-- If you think the chess rules are not fair, first beat Anand, Kasparov and Karpov then you can change them. Moral is, don't question the work of others if you don't know the reason why they did it.
In a vacuum yes. In atmosphere the HE one will fall slower since the drag force is proportional to cross sectional area. Both will feel an identical force but unless you compress 200kg of helium into the balloon it will have a lower mass and higher acceleration from drag in the direction opposite it's path.
-- Rules of thumb should not be taken for the whole hand.
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Unless I'm very mistaken, bodies fall at the same rate towards the Earth (or any other body) at the same rate. The ideal condition is vacuum, but if there is air/wind, it offers significant resistance; which explains why a block of wood falls faster than a feather. I still stand by what I said; I don't understand the point you're trying to make. :~
Cheers, Vikram.
"Life isn't fair, and the world is full of unscrupulous characters. There are things worth fighting for, killing for and dying for, but it's a really small list. Chalk it up to experience, let it go, and move on to the next positive experience in your life." - Christopher Duncan.
you're right about your point, but it's only valid in vacuum. That's what I learned. You're entitled on your opinion.
Vikram A Punathambekar wrote:
I don't understand the point you're trying to make
The egg thing was a joke, nothing more, nothing less, you're just making a big deal out of it.
V.
Stop smoking so you can: Enjoy longer the money you save. Moviereview Archive -
Vikram A Punathambekar wrote:
Unless I'm very mistaken, bodies fall at the same rate towards the Earth (or any other body) at the same rate.
The department of irrelevant nitpicking would like to point out that while the Earth attracts a BB and a boulder equally the boulder applies a stronger force on the Earth. As a result in a vacuum the boulder will appear to fall faster as observed by someone on the Earth's surface by an infinitesimal rate. You'd need to drop something the size of a large moon to see any visible difference. :rolleyes:
-- Rules of thumb should not be taken for the whole hand.
dan neely wrote:
The department of irrelevant nitpicking
:laugh: thank you so much :-)
V.
Stop smoking so you can: Enjoy longer the money you save. Moviereview Archive