cuboid tank filled with water has a bottom area of 80 cm2 and a water depth of 8 cm. Now put a cuboid iron block with a bottom area of 16 square centimeters vertically in the water, there is still part of the iron block exposed, how many centimeters is the current water depth?
一只装有水的长方体水槽，底面积为80平方厘米，水深8厘米．现将一个底面积为16平方厘米的长方体铁块竖放在水中，仍有部分铁块露在外面，求现在的水深多少厘米？
<gadget id="calculator">80 - 16</gadget>
<output>64</output>

<gadget id="calculator">8 / 64</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">80 * (1/8)</gadget>
<output>10</output>

<gadget id="calculator">8 + 10</gadget>
<output>18</output>

<result>18</result>