A rectangular underground concrete water reservoir measures 5.0 m long, 4.0 m wide, and 2.5 m deep. What is the maximum water capacity of this reservoir in liters? (1 m³ = 1,000 liters)
Answer and explanation
Correct answer: A. 50,000 liters
- Step 1: Calculate volume in cubic meters: V = length × width × depth = 5.0 × 4.0 × 2.5 = 20.0 × 2.5 = 50.0 m³. Step 2. Convert to liters: 50.0 m³ × 1,000 L/m³ = 50,000 liters. Answer: 50,000 liters. Why not the others: 40,000 L uses depth 2.0 m; 25,000 L halves the volume; 100,000 L doubles the volume.
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