Problema Solution
The school student council sponsored a Switch Day where students were able to switch classes every twenty minutes. The students are in school for seven hours. If a student switched as much as possible, how many times would that student get to visit another classroom?
Answer provided by our tutors
first lets find how many minutes are in 7 hour:
1 hour = 60 min
7 hours = 7*60 = 420 min
the maximum number of switches will happen if the student is switching every 20 min
divide the total time by 20 (the minimum time between 2 switches):
420 : 20 = 21
the student gets to visit another classroom 21 times.