Carrie works in the shipping department of a toy manufacturer. Toy cars weigh 2 pounds apiece and are shipped in a container that weighs 15 pounds when empty. Toy trucks, which weigh 3 pounds apiece, are shipped in a container weighing 5 pounds. When packed with toys and ready for shipment, both kinds of containers have the same number of toys and the same weight. What is the weight of each container?