Question

In a shower, 5 cm of rain falls. The volume of the water that falls on 2 hectares of ground, is

(a) 100 $m^3$ (b) 10 $m^3$ (c) 1000 $m^3$ (d) 10000 $m^3$

Answer 1

1 hectare = $10,000m^2$
Given
2 hectare of land
Area of 2 hectares = $2\times 10,000m^2$ = $20,000m^2$
Length of Rain fall = 5 cm = $\frac{5}{100}$ m = $\frac{1}{20}$m $(\because 1m=100cm)$
Volume = Area x length of Rainfall
=20,000 x $\frac{1}{20}{m}^3$
= $1000m^3$
(c) $1000m^3$