Question

What is the total number of students in a college?
I. In the college 25% of the students are between 17 to 22 years of age, and 40% of the remaining are above 28 years of age group.
II. Ratio between the students of age group between 17 to 22 years and between 22 to 28 years is 4 : 5.
III. The ratio of teachers to students in the college is 1 : 50

A Only I and II
B Only I and III
C Only I and either II or III
D All I, II and III
E None of these
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