A cylindrical tank with a radius of 5 meters and a height of 10 meters is filled with water. If water is drained at a rate of 2 cubic meters per minute, how long will it take to empty the tank? - RoadRUNNER Motorcycle Touring & Travel Magazine

Understanding the Context

This cylindrical tank holds exactly 785 cubic meters of water. It’s a common size in agricultural, municipal, and industrial settings. When emptied at 2 cubic meters per minute, the total drainage time becomes approximately 392.5 minutes—about 6 hours and 12 minutes. That time aligns with growing interest in water conservation, smart infrastructure monitoring, and real-time data tracking in facility management. These trends drive users to seek clear, accurate answers about how long systems last under consistent loads.

Breaking down the math: the tank’s volume is calculated using the formula for a cylinder—V = πr²h. With a 5-meter radius and 10-meter height, the volume reaches about 785 cubic meters. At 2 cubic meters per minute, the tank empties in roughly 392.5 minutes. This measurement matters beyond theory—homeowners managing water storage, facility operators planning maintenance, or engineers assessing system performance all rely on this knowledge for accurate forecasting.

Key Insights

Common Questions About Draining This Tank

1. How is volume calculated for a cylindrical tank?
Rounded to volumetric accuracy, the tank holds roughly 785 cubic meters, determined by π × (5²) × 10.

2. What affects the actual drainage time?
Drain rate consistency, minor flow variations, and tank outlet efficiency influence how close the real time matches the calculated 392 minutes.

3. Why track this kind of metric?
Maintaining accurate time estimates supports better resource planning, emergency response timing, and infrastructure sustainability.

More Than a Math Problem: Real-World Implications

Final Thoughts

A cylindrical tank filled to capacity