2000 AMC 10 Problems/Problem 6

Problem

The pattern of the units digits are

$1,1,2,3,5,8,3,1,4,5,9,4,3,7,0,7,7,4,1,5,6$

In order of appearance:

$1,2,3,5,8,4,9,7,0,6$ .

$6$ is the last.

$\boxed{\text{C}}$

2000 AMC 10 (Problems • Answer Key • Resources)
Preceded by Problem 5	Followed by Problem 7
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