In a cube container with a water edge length of 10 decimeters, put a cylinder with equal base and height and a cone-shaped part (completely submerged), the water in the container has risen by 1 decimeter, and the cylinder is known The area of the base of the body is 15 square decimeters, what is the height of the cone part?
在一个装有水棱长为10分米的正方体容器中放入等底等高的圆柱体与圆锥体形状的零件各一个(完全浸没)，容器里的水上升了1分米，已知圆柱体的底面积是15平方分米，圆锥体零件的高是多少分米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">3 / 15</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">10 * 10 * (1/4) * (1/5)</gadget>
<output>5</output>

<result>5</result>