The local aquarium has 4 dolphins that each require 3 hours of training daily. The aquarium has 2 trainers and they want to split the hours they spend training the dolphins equally. How many hours will each trainer spend training the dolphins?
A step-by-step solution is:
6
Training all the dolphins takes 4 * 3 = 12 hours.

They want to split the hours equally so each trainer has to train the dolphins for 12 / 2 = 6 hours.

.

Thus, the answer is 6