There is a cylindrical container with a water depth of 2.5 cm, a bottom area of 72 cm2, and a height of 15 cm. A cube of iron with a side length of 6 cm is placed in water, and the iron is not submerged. How high is the water in centimeters?
有一个圆柱体容器，水深2.5厘米，底面积为72平方厘米，高15厘米．把一个棱长为6厘米的正方体铁块放入水中，铁块没有被淹没．这时水面高多少厘米？
<gadget id="calculator">72 * 2.5</gadget>
<output>180</output>

<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<gadget id="calculator">72 - 36</gadget>
<output>36</output>

<gadget id="calculator">180 / 36</gadget>
<output>5</output>

<result>5</result>