Question

In a shower, 5 cm of rain falls. What is the volume of water that falls on 2 hectares of ground?
(a) 500 m³
(b) 750 m³
(c) 800 m³
(d) 1000 m³

Answer 1

(d) 1000 m³

$$\begin{gathered} \mathrm{Area}\mathrm{of}\mathrm{the}\mathrm{land}=2\mathrm{sq}\mathrm{hec}=2000\mathrm{sq}\mathrm{m} \\ \mathrm{Amount}\mathrm{of}\mathrm{rainfall}=5\mathrm{cm}=0.05\mathrm{m} \\ \therefore \mathrm{Volume}\mathrm{of}\mathrm{the}\mathrm{water}=\mathrm{area}\mathrm{of}\mathrm{the}\mathrm{land}\times \mathrm{amount}\mathrm{of}\mathrm{rainfall} \\ =2000\times 0.05 \\ =1000{\mathrm{m}}^3 \end{gathered}$$