If 36 students in a class are female and the ratio of female students to male students is 9 : 11, what percentage of the class is female?
A
25%
B
33.33%
C
45%
D
66.66%
Correct Answer: 45%
9x = 36 x = 4 So, 11x = 44 Percentage of female = 36/36 + 44 = 45%