Gold coins
There are 10 bags with gold coins (bag 1, 2 , 3, ....10). One of the bags has fake gold coins. The gold coin weight is 1,0 kg and a fake coin weights 1,1 kg. You have a weight meter and you are allowed to make just one reading, What is the minimum amount of coins you must collect from the bags to determine which of them has fake gold coins?
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
For the bag tagged with n , take n − 1 coins from it...