A rectangular reservoir measures 45 m long, 25 m wide, and 4 m deep. Find the volume of water it holds in litres. Show calculations.

hard 3 marks Class 5 · EVS · Up You Go

Answer

4500000 litres

The correct answer is 4500000 litres — Convert cubic metres to litres: $1 m^{3} = 1000 L$ , so $4500 \times 1000 = 4, 500, 000 L$ .

Step-by-step solution

Compute volume in cubic metres: $V = l \times w \times d = 45 m \times 25 m \times 4 m = 4500 m^{3}$ .
Convert cubic metres to litres: $1 m^{3} = 1000 L$ , so $4500 \times 1000 = 4, 500, 000 L$ .

Common mistake: Forgetting conversion from cubic metres to litres

Concept tested: Volume calculation of water bodies