Question

A student raises her grade average from a 75 to a 90. What was the percent of increase in the student's grade average? Round your answer to the nearest tenth of a percent, if necessary.

A) 20%
B) 16.7%
C) 8.3%
D) 15%

Answer 1

A) 20%

90-75=15
15/75=.2
.2=20%