A tank is filled with 200 liters of water. If 15% evaporates each day, how much water remains after 2 days?

Tue, 05 May 2026 13:53:45 +0000

**Why a 200-liter tank losing 15% daily evaporation matters in 2025** For many Americans, tracking water usage and conservation is more relevant than ever—especially as weather extremes and rising utility costs reshape daily habits. A simple tank holding 200 liters, shrinking by 15% each day, reflects a real-world scenario people encounter in discussions about household efficiency, resource planning, and long-term sustainability. This pattern of evaporation offers a tangible question: How much water remains after two days, and what does that mean for practical planning? Whether managing rainwater collection, outdoor irrigation, or emergency supplies, understanding evaporation rates helps informed decision-making. The process isn’t hypothetical—it’s a measurable phenomenon that highlights the invisible but significant loss of water over time, directly impacting both consumption and storage strategies. With increasing focus on responsible water use in cities and rural areas alike, grasping these dynamics supports smarter planning, better budgeting, and greater awareness of natural resource limitations. Understanding the math behind a 200-liter tank losing 15% daily reveals how quickly evaporation affects stored water. Unlike linear depletion, evaporation follows a compounding burn-off: each day, 15% of the remaining volume vanishes, meaning the loss accelerates. This dynamic mirrors real-life storage challenges—especially in regions with high heat or low humidity where water loss can quickly add up.