MathDB
Kim's average score

Source:

November 19, 2005

Problem Statement

Kim earned scores of 87,83, and 88 on her first three mathematics examinations. If Kim receives a score of 90 on the fourth exam, then her average will
<spanclass=latexbold>(A)</span> remain the same<spanclass=latexbold>(B)</span> increase by 1<spanclass=latexbold>(C)</span> increase by 2<spanclass=latexbold>(D)</span> increase by 3<spanclass=latexbold>(E)</span> increase by 4<span class='latex-bold'>(A)</span>\ \text{remain the same} \qquad <span class='latex-bold'>(B)</span>\ \text{increase by 1} \qquad <span class='latex-bold'>(C)</span>\ \text{increase by 2} \qquad <span class='latex-bold'>(D)</span>\ \text{increase by 3} \qquad <span class='latex-bold'>(E)</span>\ \text{increase by 4}