<PRE><B>Question 955015</B>
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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