Question

Courtney reduced the number of hours that she spends in front of screens each day. Now she spends more time on homework. Courtney was able to raise her grade point average (GPA) from 1.8 to 2.7. By what percentage did Courtney raise her GPA?
a) 67%
b) 50%
c) 33%
d) 25%

Answer 1

2.7 - 1.8 = 0.9 difference in grade
x % of 1.80 = 0.9
x/100*1.80 = 0.9
1.8x = 90
x = 50
Answer is b)50%