SOLUTION: A school has 90 children. During the day, each child attends 4 classes. Each class has 15 children and 1 teacher. During the day, each teacher teaches 3 classes. What is the small

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Question 260679: A school has 90 children. During the day, each child attends 4 classes. Each class
has 15 children and 1 teacher. During the day, each teacher teaches 3 classes. What is the smallest number of teachers the school can have?
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
90 students in the school.
each student attends 4 classes.
each class has 15 students and 1 teacher.
each teacher teaches 3 classes.
there is 1 teacher per class.

since each class contains 15 students, then 90 / 15 = a minimum of 6 classes assuming each student only had 1 class.

since each student has 4 classes, then they need 4 * 6 = a minimum of 24 classes to accommodate them.

since each teacher teaches 3 classes, then they need a minimum of 24 / 3 = 8 teachers to teach those classes.