Difference between revisions of "2012 UNCO Math Contest II Problems/Problem 8"
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Revision as of 03:22, 17 October 2014
Problem
An ordinary fair die is tossed repeatedly until the face with six dots appears on top. On
average, what is the sum of the numbers that appear on top before the six? For example, if
the numbers 
are the numbers that appear, then the sum of the numbers before the
six appears is 
. Do not include the 
in the sum.
