Question

The rainfall recorded on a certain day was 5 cm. Find the volume of water that fell on a 2-hectare field.

Answer 1

Given, Rainfall on a certain day = 5 cm = $\frac{5}{100}$ m

Area of field = 2 hectare = 2 × 10000 m² = 20000 m²

Volume of water that falls on the field

= Area of the field × Rainfall on a certain day

$$\begin{array}{l} = 20000 \text{ m}^2 \times \frac{5}{100} \text{ m} \\ = 1000 \text{ m}^3 \\ = 1000 \times 1000 \text{ litres} \quad (\because 1 \text{ m}^3 = 1000 \text{ litres}) \\ = 1000000 \text{ litres} \end{array}$$

Thus, the volume of water falling on the field is 1000000 litres.