1998 CEMC Gauss (Grade 7) Problems/Problem 4

Problem

Jean writes five tests and achieves the marks shown on the graph. What is her average mark on these five tests?

[insert bar graph with 5 bars: 80, 70, 60, 90, 80]

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$\text{(A)}\ 74 \qquad \text{(B)}\ 76 \qquad \text{(C)}\ 70 \qquad \text{(D)}\ 64 \qquad \text{(E)}\ 79$

From the bar graph, we can see that the marks are $80$ , $70$ , $60$ , $90$ , and $80$ .

The average of the $5$ tests is then $\frac{80+70+60+90+80}{5} = \boxed{\textbf {(B) } 76}$ .

-edited by coolmath34, De-math-wiz, and anabel.disher

1998 CEMC Gauss (Grade 7) (Problems • Answer Key • Resources)
Preceded by Problem 3	Followed by Problem 5
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CEMC Gauss (Grade 7)