Step: 1
Length of the water tank = 90 ft.
Step: 2
Width of the water tank = 60 ft.
Step: 3
The height of the water level = 30 ft.
Step: 4
Volume of water in the water tank = length × width × depth.
Step: 5
= 90 × 60 × 30
[Substitute l = 90, w = 60 and h = 30.]
Step: 6
= 162000 ft3
[Multiply 90, 60 and 30.]
Step: 7
Volume of water in the water tank is 162000 ft3.
Correct Answer is : 162000 ft3