Skip to main content
OlympiadHQ

Browse · harp

Print

jmc

prealgebra junior

Problem

There are cities in the County of Newton. Their populations are shown in the bar chart below. The average population of all the cities is indicated by the horizontal dashed line. Which of the following is closest to the total population of all cities?
problem
(A)
(B)
(C)
(D)
Solution
We can see that the dotted line is exactly halfway between and , so it is at . As this is the average population of all cities, the total population is simply .
Final answer
D