A cylindrical tank has a radius of 5 meters and a height of 10 meters. If it is filled with water to 80% of its capacity, what is the volume of water in the tank?

✓ Correct Answer: Option A

The total volume of the cylinder is V = πr²h = π(5²)(10) = 250π cubic meters. If filled to 80% capacity, the volume of water is 0.80 * 250π = 200π cubic meters.