Guest Posted August 4, 2008 Report Share Posted August 4, 2008 Lets say you have 75 buttons. They are all but two 25 grams. One of them is 24 grams and the other is 26 grams. How many times (minimum) do you have to weigh them to find those two buttons???????? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted August 4, 2008 Report Share Posted August 4, 2008 Just to be clear, are we using a balance-type scale that only compares two quantities, or a scale that gives a numerical reading? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted August 4, 2008 Report Share Posted August 4, 2008 Lets say you have 75 buttons. They are all but two 25 grams. One of them is 24 grams and the other is 26 grams. How many times (minimum) do you have to weigh them to find those two buttons???????? 2, if the first two keys you weigh are the 24/26 gram ones, then you've found them. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted August 4, 2008 Report Share Posted August 4, 2008 (edited) 2, if the first two keys you weigh are the 24/26 gram ones, then you've found them. there are no keys in this puzzle smartass Edited August 4, 2008 by javoie Quote Link to comment Share on other sites More sharing options...
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Lets say you have 75 buttons. They are all but two 25 grams. One of them is 24 grams and the other is 26 grams. How many times (minimum) do you have to weigh them to find those two buttons????????
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