In 2005, 20 percent of the math department’s 45 students were female, and in 2007, 40 percent of the math department’s 705 students were female. What was the percent increase from 2005 to 2007 in the number of female students in the department?	Choose one
A) 85%
B) 130%
C) 211.1%
D) 220%
E) 260%
Female students in 2005 = 20% of 45 = 9   Female students in 2007 = 40% of 70 = 28   Percentage increase = [(28 - 9)/9] *100 % = 211.1%   211.1%orrect Option: 211.1%
<result>C</result>
In 2005, 20 percent of the math department’s 45 students were female, and in 2007, 40 percent of the math department’s 705 students were female. What was the percent increase from 2005 to 2007 in the number of female students in the department?