MathDB
Raising test average

Source: AMC 10 2011 b Problem 2

February 24, 2011
inequalitiesAMC

Problem Statement

Josanna's test scores to date are 90, 80, 70, 60, and 85. Her goal is to raise her test average at least 3 points with her next test. What is the minimum test score she would need to accomplish this goal?
<spanclass=latexbold>(A)</span> 80<spanclass=latexbold>(B)</span> 82<spanclass=latexbold>(C)</span> 85<spanclass=latexbold>(D)</span> 90<spanclass=latexbold>(E)</span> 95 <span class='latex-bold'>(A)</span>\ 80 \qquad <span class='latex-bold'>(B)</span>\ 82 \qquad <span class='latex-bold'>(C)</span>\ 85 \qquad <span class='latex-bold'>(D)</span>\ 90 \qquad <span class='latex-bold'>(E)</span>\ 95