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Question 955015: "a college advertises that a student to faculty ratio is 18 to 1. if 90 students register for introductory spanish, how many sections of the course would you expect to see offered"
Answer by Theo(13342)   (Show Source):
You can put this solution on YOUR website! students to teacher ratio is equal to 18/1.
if you have 90 students, then the ratio will become 90/x = 18/1.
x is the number of teachers required for 90 students.
since 90 is equal to 5 * 18, then, in order to keep the ratio the same, 1 has to also be multiplied by 5,
you get:
90 / x = (18 * 5) / (1 * 5) = 90 / 5.
you need 5 teachers.
each teacher has 18 students.
5 * 18 = 90 stduents are served.
1 teach for each class is equal to 5 classes.
1 class is equal to 1 section.
you need 5 sections.
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