The number of female students in a college in the previous year was 480. If in the current year the number of male students in the college doubled over that of the previous year but the proportion of male students halved, then what is the number of female students in the college in the current year?	Choose the correct choice from the following answers
A) 1680
B) 1760
C) 1840
D) 1920
E) 2000
Let x be the number of male students last year. The number of male students this year is 2x.   Let y be the number of female students this year.   x/480 = 2(2x/y)   y = 1920   The answer is 1920.
<result>D</result>
The number of female students in a college in the previous year was 480. If in the current year the number of male students in the college doubled over that of the previous year but the proportion of male students halved, then what is the number of female students in the college in the current year?