Explanation
A problem that involves values in cubic units will tell you that it involves a problem on volume. The formula for volume or capacity of solid figures with a square or rectangular base is:
\(\mathrm{V}=\text { length } \times \text { width }\times\text { height }=\text { LWH }\)
\(2000 = 80 \times 2.5 \times \text {H}\)
2000 = 200H
H = 2000/200 = 10 feet