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2012 AMC 8 Answer Key: Difference between revisions

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Line 1: Line 1:
Problem 1: '''E'''
Problem 1: <math>\textbf{(E)}\hspace{.05in}9</math>


Problem 2: '''B'''
Problem 2: <math>\textbf{(B)}\hspace{.05in}700</math>


Problem 3: '''B'''
Problem 3: <math>\textbf{(B)}\hspace{.05in}5:21\textsc{pm}</math>


Problem 4: '''C'''
Problem 4: <math>\textbf{(C)}\hspace{.05in}\frac{1}{8}</math>


Problem 5: '''E'''
Problem 5: <math>\textbf{(E)}\hspace{.05in}5</math>


Problem 6: '''E'''
Problem 6: <math>\textbf{(E)}\hspace{.05in}88</math>


Problem 7: '''B'''
Problem 7: <math>\textbf{(B)}\hspace{.05in}92</math>


Problem 8: '''D'''
Problem 8: <math>\textbf{(D)}\hspace{.05in}60</math>


Problem 9: '''C'''
Problem 9: <math>\textbf{(C)}\hspace{.05in}139</math>


Problem 10: '''D'''
Problem 10: <math>\textbf{(D)}\hspace{.05in}9</math>


Problem 11: '''D'''
Problem 11: <math>\textbf{(D)}\hspace{.05in}11</math>


Problem 12: '''A'''
Problem 12: <math>\textbf{(A)}\hspace{.05in}1</math>


Problem 13: '''C'''
Problem 13: <math>\textbf{(C)}\hspace{.05in}4</math>


Problem 14: '''B'''
Problem 14: <math>\textbf{(B)}\hspace{.05in}7</math>


Problem 15: '''D'''
Problem 15: <math>\textbf{(D)}\hspace{.05in}\text{61 and 65}</math>


Problem 16: '''C'''
Problem 16: <math>\textbf{(C)}\hspace{.05in}87431</math>


Problem 17: '''B'''
Problem 17: <math>\textbf{(B)}\hspace{.05in}4</math>


Problem 18: '''A'''
Problem 18: <math>\textbf{(A)}\hspace{.05in}3127</math>


Problem 19: '''C'''
Problem 19: <math>\textbf{(C)}\hspace{.05in}9</math>


Problem 20: '''B'''
Problem 20: <math>\textbf{(B)}\hspace{.05in}\frac{5}{19}<\frac{7}{21}<\frac{9}{23}</math>


Problem 21: '''D'''
Problem 21: <math>\textbf{(D)}\hspace{.05in}50</math>


Problem 22: '''D'''
Problem 22: <math>\textbf{(D)}\hspace{.05in}7</math>


Problem 23: '''C'''
Problem 23: <math>\textbf{(C)}\hspace{.05in}6</math>


Problem 24: '''A'''
Problem 24: <math>\textbf{(A)}\hspace{.05in}\frac{4-\pi}{\pi}</math>


Problem 25: '''C'''
Problem 25: <math>\textbf{(C)}\hspace{.05in}\frac{1}{2}</math>

Revision as of 12:40, 25 November 2013

Problem 1: $\textbf{(E)}\hspace{.05in}9$

Problem 2: $\textbf{(B)}\hspace{.05in}700$

Problem 3: $\textbf{(B)}\hspace{.05in}5:21\textsc{pm}$

Problem 4: $\textbf{(C)}\hspace{.05in}\frac{1}{8}$

Problem 5: $\textbf{(E)}\hspace{.05in}5$

Problem 6: $\textbf{(E)}\hspace{.05in}88$

Problem 7: $\textbf{(B)}\hspace{.05in}92$

Problem 8: $\textbf{(D)}\hspace{.05in}60$

Problem 9: $\textbf{(C)}\hspace{.05in}139$

Problem 10: $\textbf{(D)}\hspace{.05in}9$

Problem 11: $\textbf{(D)}\hspace{.05in}11$

Problem 12: $\textbf{(A)}\hspace{.05in}1$

Problem 13: $\textbf{(C)}\hspace{.05in}4$

Problem 14: $\textbf{(B)}\hspace{.05in}7$

Problem 15: $\textbf{(D)}\hspace{.05in}\text{61 and 65}$

Problem 16: $\textbf{(C)}\hspace{.05in}87431$

Problem 17: $\textbf{(B)}\hspace{.05in}4$

Problem 18: $\textbf{(A)}\hspace{.05in}3127$

Problem 19: $\textbf{(C)}\hspace{.05in}9$

Problem 20: $\textbf{(B)}\hspace{.05in}\frac{5}{19}<\frac{7}{21}<\frac{9}{23}$

Problem 21: $\textbf{(D)}\hspace{.05in}50$

Problem 22: $\textbf{(D)}\hspace{.05in}7$

Problem 23: $\textbf{(C)}\hspace{.05in}6$

Problem 24: $\textbf{(A)}\hspace{.05in}\frac{4-\pi}{\pi}$

Problem 25: $\textbf{(C)}\hspace{.05in}\frac{1}{2}$

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