[IQ Question] Golden balls [Solution posted!!]

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[IQ Question] Golden balls [Solution posted!!]
Topic Started: Sep 4 2010, 03:52 AM (113 Views)
Meow Queen	Sep 4 2010, 03:52 AM Post #1
ƹ̵̡ӝ̵̨̄ʒ on9當有趣 ƹ̵̡ӝ̵̨̄ʒ └(￣^￣_)┐ Posts: 2,132 Group: Registered Guest Member #773 Joined: Mar 12, 2010 Gender Female Runescape Name Snoopymei Combat Level (F2P) 125	There are 10 identical golden balls, 9 of them have the same weight, only one of them have a different weight. Now, you can use a scale 3 times to find out which ball is different and is it heavier or lighter. Edited by Meow Queen, Sep 5 2010, 02:30 AM.



Meow Queen	Sep 4 2010, 12:02 PM Post #2
ƹ̵̡ӝ̵̨̄ʒ on9當有趣 ƹ̵̡ӝ̵̨̄ʒ └(￣^￣_)┐ Posts: 2,132 Group: Registered Guest Member #773 Joined: Mar 12, 2010 Gender Female Runescape Name Snoopymei Combat Level (F2P) 125	no one can answer? XD



Specture1	Sep 4 2010, 12:53 PM Post #3
Leader of the Smurfocalypse Posts: 7,159 Group: Administrator Member #49 Joined: Jul 1, 2008 Gender Male Runescape Name Specture1 Combat Level (F2P) 126	5 on 1 side, 5 on the other. Take off 1 ball from each side (thus not using up a use of the scale as well), and should they stay unbalanced, you know those two are identical. Continue to do this until the scale levels, and then you will know one of the two balls you took off was not correct (the odd one out). Now simply take the two balls you know aren't correct, and put them on one side, with two real ones on the other, to figure if the unknown ball is heavier ot lighter. Now you just have to divine which is the heavier or lighter one, so take off all other balls and put the two your not sure of on the scale (use 3). At this point, if you know the ball is heavier than your looking for the one thats down, otherwise the one thats up. Presto! I'm sure you have some simple answer, but that one will work, lol.



Kolby	Sep 4 2010, 01:57 PM Post #4
Sentinel Posts: 1,530 Group: Registered Guest Member #590 Joined: Jul 21, 2009 Gender Male Runescape Name Kolbys 24 Combat Level (F2P) 123	wow my head hurts I give up. btw Neal you cheated, you can only use the scale 3 times. Not just put the balls on there 3 times. Edited by Kolby, Sep 4 2010, 02:02 PM.



Meow Queen	Sep 5 2010, 01:35 AM Post #5
ƹ̵̡ӝ̵̨̄ʒ on9當有趣 ƹ̵̡ӝ̵̨̄ʒ └(￣^￣_)┐ Posts: 2,132 Group: Registered Guest Member #773 Joined: Mar 12, 2010 Gender Female Runescape Name Snoopymei Combat Level (F2P) 125	well, i dont think anyone else would be trying to solve this, so ima post my solution to this



Meow Queen	Sep 5 2010, 02:26 AM Post #6
ƹ̵̡ӝ̵̨̄ʒ on9當有趣 ƹ̵̡ӝ̵̨̄ʒ └(￣^￣_)┐ Posts: 2,132 Group: Registered Guest Member #773 Joined: Mar 12, 2010 Gender Female Runescape Name Snoopymei Combat Level (F2P) 125	correct me if u see a flaw X.X Different ball = X Step 1 [1]Place 3 balls on each side, ball No. 1-6. If they are same weight, then X ball is in No. 7-10 [2]Place ball No. 789 on one side and 3 of the normal balls on the other side. If they are same weight, then No. 10 is X. [3]Place X one one side and one of the normal ball on the other and we will know is it heavier or lighter. If No. 789 =/= No. 123, then we know X is either heavier or lighter. [3]Now weight No. 7 vs No. 8 If they are same weight, then No. 9 is X, and we already know if it is heavier or lighter. If they are different weight, then if No. 789 > No. 123, then X is the heavier one. Vice versa. If X is in No. 1-6, then I shall name the heavier three No. 1-3, and the lighter three No. 4-6 Step 2 [2]Take away No. 5-6, and place No. 3 to the other side, so No. 12 vs No. 34 If they are same weight, then X is No. 5/6. Since No. 123 > No. 456, so X is lighter. Weight No. 5 vs No. 6, which ever is lighter is X. If they are not the same weight, because we know No. 123 is heavier If No. 12 > No. 34, then either No. 1/2 is a heavier ball, or No. 4 is a lighter ball. [3]Now we weight No. 1 vs No. 2 If they are same weight, then No. 4 is X. If they are different weight, then which ever one is heavier is X. (Cause we know X is a heavier ball cause No. 123 > normal balls) If No. 12 < No. 34, then No. 3 is X. (Cause No. 123 > No. 456, so X must be heavier and in the No. 1-3 group) Edited by Meow Queen, Sep 5 2010, 02:27 AM.



Kolby	Sep 5 2010, 05:40 AM Post #7
Sentinel Posts: 1,530 Group: Registered Guest Member #590 Joined: Jul 21, 2009 Gender Male Runescape Name Kolbys 24 Combat Level (F2P) 123	I was so close to it to, I had like 1/2 of the first steps, but I just couldn't figure it all out.



Mike	Sep 5 2010, 11:56 AM Post #8
Wish Naruto would ninjutsu himself into my butt. Posts: 11,030 Group: Retired Knight Member #503 Joined: May 17, 2009 Gender Male Runescape Name Chimisback Combat Level (F2P) 126	Test 4 balls on eat side until it's balanced then put the 2 remaining balls (one will b the beavier and one will be the lighter) on the balance and the side that goes down that ball will be the heavier of the 2 and the one that goes up will be the lighter of the 2.



Piers	Sep 5 2010, 12:31 PM Post #9
Piers Posts: 2,168 Group: Registered Guest Member #532 Joined: Jun 10, 2009 Gender Male Runescape Name Piers Combat Level (F2P) 121	wasnt going to ruin this for you but i've known it for a year, its a good trick hehe i do it with 7 balls and 2 turns though.



Specture1	Sep 5 2010, 12:58 PM Post #10
Leader of the Smurfocalypse Posts: 7,159 Group: Administrator Member #49 Joined: Jul 1, 2008 Gender Male Runescape Name Specture1 Combat Level (F2P) 126	That solution doesn't work every time though, lol 0.0



Meow Queen	Sep 5 2010, 03:40 PM Post #11
ƹ̵̡ӝ̵̨̄ʒ on9當有趣 ƹ̵̡ӝ̵̨̄ʒ └(￣^￣_)┐ Posts: 2,132 Group: Registered Guest Member #773 Joined: Mar 12, 2010 Gender Female Runescape Name Snoopymei Combat Level (F2P) 125	Mike Sep 5 2010, 11:56 AM Test 4 balls on eat side until it's balanced then put the 2 remaining balls (one will b the beavier and one will be the lighter) on the balance and the side that goes down that ball will be the heavier of the 2 and the one that goes up will be the lighter of the 2. yea thats cheating :#



Meow Queen	Sep 5 2010, 03:40 PM Post #12
ƹ̵̡ӝ̵̨̄ʒ on9當有趣 ƹ̵̡ӝ̵̨̄ʒ └(￣^￣_)┐ Posts: 2,132 Group: Registered Guest Member #773 Joined: Mar 12, 2010 Gender Female Runescape Name Snoopymei Combat Level (F2P) 125	Specture1 Sep 5 2010, 12:58 PM That solution doesn't work every time though, lol 0.0 dont just say it doesnt work everytime, tell me how and which step is wrong? @.@



mr wett	Sep 5 2010, 04:48 PM Post #13
Dranzer's Apprentice Posts: 681 Group: Retired Knight Member #798 Joined: May 24, 2010 Gender Male Runescape Name mr wett Combat Level (F2P) 125	The obvious statement here is your all obssesed with balls



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