Put an iron block with a volume of 30cm**3 into a cuboid glass container with a length of 5cm and a width of 2cm filled with water. How many centimeters will the water level rise if the iron block is completely submerged in water?
把一个体积是30cm**3的铁块放入一个长5cm、宽2cm的装有水的长方体玻璃容器中．如果铁块全部淹没在水中，水面会上升多少cm
<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">30 / 10</gadget>
<output>3</output>

<result>3</result>