Performances. During a performing arts festival, students from elementary and middle schools will be grouped together for various performances. There are 32 elementary
students and 40 middle-school students. The arts director wants identical groups for the
performances, with students from both schools in each group. Each student can be a part
of only one group.
after how much time will all 3 lights blink at the exact same time? How many times total will this happen in 1 day?