You will first find the unit rate which is single in four hours so then multiply by triple which is 3 and then you get triple will be in 12 hours
ANSWER
4375 unit cubes
EXPLANATION
The volume of a right rectangular prism is given by;

We substitute the given dimension to obtain,

The volume of the unit cube with edge lengths

is

To find the number of unit cubes that can fit inside the prism, we divide the volume of the rectangular prism by the volume of the unit cube.


Answer:
After 5 minutes, the pool will hold 249,00 gallons of water.
After 20 minutes, the pool will hold 246,000 gallons of water.