The diameter of the bottom surface of a cylindrical glass tank is 60 cm, and the height of the water inside is 20 cm. After putting a conical object (completely submerged), the water level rises to 24 cm. What is the volume of this conical object?
一个圆柱形玻璃缸的底面直径是60厘米，里面水的高度是20厘米，放入一个圆锥形的物体后(完全浸没)，水面上升至24厘米．这个圆锥形物体的体积是多少？
<result>705.5</result>