Problem Solving

At a certain university, the ratio of the number of teaching assistants to the number of students in any course must always be greater than 3:80. At this university, what is the maximum number of students possible in a course that has 5 teaching assistants?
A) 130
B) 131
C) 132
D) 133
E) 134

OA D

IMO D 133 . Given ratio b/w assistant & students => 3:80 i.e. students will be less than or equal to 80x .In other words , maximum possible students 80x . Now as per question 3x = 5 i.e. x = 5/3 , Number of students 80x = 400/3 = 133.33 . We have to round down here to maintain the inequality . So Students = 133 Hence Ans D . OA pls