At the beginning of the year the ratio of male to female students in a college was 3 to During the year, 10 male-and 20 femalestudents left, while no new students joined the college. If, at the end of the year the ratio of male to female students was 4 to 5 ? how many students were there in the college at the beginning of the year?
Solution
Correct Answer: Option D
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