K K.R. New member Nov 5, 2010 #1 Each commercial is either 30 or 60 seconds long. If the total commercial time during 1 hour is 8 minutes, how many 30-second and how many 60-second commercials were played that hour?
Each commercial is either 30 or 60 seconds long. If the total commercial time during 1 hour is 8 minutes, how many 30-second and how many 60-second commercials were played that hour?
