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Weighing Coins

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					                     Weighing Coins
You are provided with eight (8) identical
looking coins. Seven (7) have the identical
mass. The remaining one is lighter.
You can use the standard balance scale
only twice. How will you determine which
coin is the light one?
http://matti.usu.edu/nlvm/nav/frames_asid_139_g_3_t_2.html

				
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