Difference between revisions of "2009 AMC 8 Problems/Problem 11"

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The Amaco Middle School bookstore sells pencils costing a whole number of cents. Some seventh graders each bought a pencil, paying a total of <math> &#036;1.43</math>. Some of the <math> 30</math> sixth graders each bought a pencil, and they paid a total of <math> &#036;1.95</math>. How many more sixth graders than seventh graders bought a pencil?
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==Problem==
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The Amaco Middle School bookstore sells pencils costing a whole number of cents. Some seventh graders each bought a pencil, paying a total of <math>1.43</math> dollars. Some of the <math> 30</math> sixth graders each bought a pencil, and they paid a total of <math>1.95</math> dollars. How many more sixth graders than seventh graders bought a pencil?
  
  

Revision as of 13:22, 14 August 2011

Problem

The Amaco Middle School bookstore sells pencils costing a whole number of cents. Some seventh graders each bought a pencil, paying a total of $1.43$ dollars. Some of the $30$ sixth graders each bought a pencil, and they paid a total of $1.95$ dollars. How many more sixth graders than seventh graders bought a pencil?


$\textbf{(A)}\  1  \qquad \textbf{(B)}\   2  \qquad \textbf{(C)}\   3  \qquad \textbf{(D)}\   4  \qquad \textbf{(E)}\   5$

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