A tank is filled with 150 liters of water. If 20% of the water is drained, how much water remains in the tank?

Sun, 03 May 2026 18:16:05 +0000

**A tank is filled with 150 liters of water. If 20% of the water is drained, how much water remains?** Curious minds across the U.S. often face familiar yet thought-provoking scenarios—like how basic volume calculations shape everyday decisions, from home irrigation to emergency planning. Right now, more people are exploring practical questions about water efficiency and unexpected changes in familiar systems. One common query is: *If a tank holds 150 liters and 20% of the water is drained, how much remains?* This isn’t just a math problem—it’s a real-life example of how small reductions impact larger resources. A tank filled with 150 liters of water losing 20% of its volume becomes 120 liters. The math is straightforward: 20% of 150 liters is 30 liters, so subtracting that from the original 150 leaves exactly 120 liters. This calculation reflects how percentages work in real-world contexts—especially relevant as households and communities manage water use amid growing concerns over sustainability and conservation. ### Why Is This Scenario Gaining Attention in the U.S.?