The following graphical solution of the coins problem is created
by Xenia Cherkaev. e-mail
x_cherk@mindless.com
,
Web Page
www.angelfire.com/ut/cherk.
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Step one
Split coins into 3 equal groups.
Group 1
Group 2
Group 3
Compare the weight of groups 2 and 3
If the coins are in equilibrium,
the false coin is in group 1.
If the coins are not in equilibrium,
then group 1 contains only good coins
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