Difference between revisions of "2009 AIME I Answer Key"

Revision as of 22:50, 19 March 2009

2009 AIME I (Answer Key) Printable version \| AoPS Contest Collections • PDF
Instructions This is a 15-question, 3-hour examination. All answers are integers ranging from $000$ to $999$ , inclusive. Your score will be the number of correct answers; i.e., there is neither partial credit nor a penalty for wrong answers. No aids other than scratch paper, graph paper, ruler, compass, and protractor are permitted. In particular, calculators and computers are not permitted.
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15

1) $840$

2) $697$

3) $011$

4) $072$

5) $177$

6) $412$

7) $041$

8) $398$

9) $420$

10) $346$

11) $600$

12) $011$

13) $090$

14) $905$

15) $150$

@@ Line 1: / Line 1: @@
+{{AIME Problems|year=2009|n=I}}
 ) <math>840</math>
@@ Line 5: / Line 7: @@
 ) <math>011</math>
-) <math>177</math>
+) <math>072</math>
-) <math>072</math>
+) <math>177</math>
 ) <math>412</math>