Answer: 16 containers
Explanation:
First and foremost, we should note that:
4 quarts = 1 gallon
48 gallons = 48 × 4 = 192 quarts
Since the container holds 12 quarts of water each, the number of containers needed to fill the aquarium with water will be:
= 192 quarts / 12 quarts
= 16 containers