Problem:
On each horizontal line in the figure below, the five large dots indicate the populations of cities A,B,C,D and E in the year indicated. Which city had the greatest percentage increase in population from 1970 to 1980?
Answer Choices:
A. A
B. B
C. C
D. D
E. E
Solution:
By examining the data, we see that the percentage increases are
A:4010​=25%B:5020​=40%C:7030​=4276​%D:10030​=30%E:12040​=3331​%​
Note. Greatest percentage increase is not the same as greatest absolute increase.
