The dork tries again...PUZZLE

# Thread: The dork tries again...PUZZLE

1. Senior Member
Join Date
Dec 1969
Posts
96,118

## The dork tries again...PUZZLE

Let&#039;s do that coin puzzle all over again.<BR><BR>You have several rolls of coins.<BR><BR>One roll contains counterfeit coins.<BR><BR>All the other rolls contain genuine coins.<BR><BR>A counterfeit coin weighs 0.1 gram less than a genuine coin. [Or 0.1 gram more, or 0.1035 grams less, or... the number, per se, doesn&#039;t matter.]<BR><BR>You have a precision scale that can weigh accurately from 0.1 grams to hundreds of grams.<BR><BR>What is the minimum number of weighings you need to find which roll is the counterfeit one, NO MATTER WHICH ROLL is counterfeit?<BR><BR>HINT: The answer is one. <BR><BR>Now explain how.<BR><BR>

2. Senior Member
Join Date
Dec 1969
Posts
96,118

## Ignore this one...

Thought I had stopped this post. Added a line to other one.<BR><BR>

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