Answer: 15 containers
Explanation:
Each container can hold 3 seashells but he has 47 seashells in his collection.
The number of containers that can take these shells is;
= 47 / 3
= 15.67
The number of containers that he can fill up completely is 15 containers.
After 15 containers, he will only be able to fill up 0.67 of the next container.