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AMC 12/AHSME
1986 AMC 12/AHSME
12
12
Part of
1986 AMC 12/AHSME
Problems
(1)
Algebra
Source: AHSME 1986 problem 12
9/30/2011
John scores
93
93
93
on this year's AHSME. Had the old scoring system still been in effect, he would score only
84
84
84
for the same answers. How many questions does he leave unanswered? (In the new scoring system one receives 5 points for correct answers, 0 points for wrong answers, and 2 points for unanswered questions. In the old system, one started with 30 points, received 4 more for each correct answer, lost one point for each wrong answer, and neither gained nor lost points for unanswered questions. There are 30 questions in the 1986 AHSME.)
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6
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9
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11
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14
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Not uniquely determined
<span class='latex-bold'>(A)</span>\ 6\qquad<span class='latex-bold'>(B)</span>\ 9\qquad<span class='latex-bold'>(C)</span>\ 11\qquad<span class='latex-bold'>(D)</span>\ 14\qquad<span class='latex-bold'>(E)</span>\ \text{Not uniquely determined}
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9
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11
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14
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Not uniquely determined
AMC