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AMC 10
2000 AMC 10
14
14
Part of
2000 AMC 10
Problems
(1)
Test scores
Source:
2/20/2006
Mrs. Walter gave an exam in a mathematics class of five students. She entered the scores in random order into a spreadsheet, which recalculated the class average after each score was entered. Mrs. Walter noticed that after each score was entered, the average was always an integer. The scores (listed in ascending order) were
71
71
71
,
76
76
76
,
80
80
80
,
82
82
82
, and
91
91
91
. What was the last score Mrs. Walter entered?
(A)
71
(B)
76
(C)
80
(D)
82
(E)
91
\text{(A)}\ 71 \qquad\text{(B)}\ 76 \qquad\text{(C)}\ 80 \qquad\text{(D)}\ 82 \qquad\text{(E)}\ 91
(A)
71
(B)
76
(C)
80
(D)
82
(E)
91