If 25% of the 880 students at a certain college are enrolled in biology classes, how many students at the college are NOT enrolled in a biology class?	Choose the most appropriate option
A) 500	B) 600	C) 620	D) 640	E) 660

Rationale: "we know 25 % people study biology , therefore the no of people not studying = 100 - 25 = 75 % > therefore the people not studying biology out of a total 880 people are = 75 % of 880 > ( 75 / 100 ) * 880 = 660 people e"
Answer: E