Answer:

Step-by-step explanation:
Firstly, we have to calculate the rate at which the hose works
We can get that by dividing the volume of the first aquarium by the time taken to fill it
The volume of the first aquarium can be calculated using the formula:

Where:
L is the length of the aquarium
B is its width
H is its height
The volume of the first aquarium is thus:

We have the filling rate as:

Now, let us get the volume of the second aquarium
We use the same formula as the first
We have the volume as:

Now, to get the time taken, we divide the volume of the second aquarium by the rate of the first
Mathematically, we have that as:
