Tip
A ratio compares one quantity with another quantity by division. When two ratios are equal, they form a proportion. A ratio can be expressed in several ways.
Sample Problem
A school reports a student-to-teacher ratio of 6:1. How many students does the school have, if there are 45 teachers in the school?
Answer Options
(A) 285
(B) 270
(C) 225
(D) 151
(E) 51
View Correct Answer
(B) 270
6(45) = 1(x)
270 = x
