Bags of coins, one different
Source: Iran 3rd round 2012-Final exam-P4
September 20, 2012
ceiling functioncombinatorics proposedcombinatorics
Problem Statement
We have bags each having coins. All of the bags have gram coins except one of them which has gram coins. We have a balance which can show weights of things that have weight of at most kilogram. At least how many times shall we use the balance in order to find the different bag?Proposed By Hamidreza Ziarati