The trainers at Atlantis Aquarium perform shows about sea life. Yesterday, they performed 4 shows in 2 hours. Today, they will perform 6 shows.
If they perform shows at the same rate, how many hours will the trainers spend performing shows today?
If the trainers at Atlantis Aquarium perform 4 shows in 2 hours, then they perform 4/2=<<4/2=2>>2 shows per hour.
If the trainers will perform 6 shows today at the same rate, then they will spend 6/2=<<6/2=3>>3 hours performing shows today. Answer: \boxed{3}.