Howard is taking his kindergarten class to the museum on a school trip. He splits the class equally into 3 groups and then each of the groups goes through the museum one student at a time. If the class has 18 students in total and each student takes 4 minutes to go through the museum, then how long, in minutes, does it take each group to go through the museum?
As the groups are equally sized, they must each have 18 students in the class / 3 groups = <<18/3=6>>6 students in each group.
So each group takes 6 students in each group * 4 minutes per each student’s trip = <<6*4=24>>24 minutes to go through the museum.
#### 24