A cuboid container is 20cm long, 10cm wide, 8cm high, and the depth of water inside is 5cm. After closing the container tightly, let the side with a width of 10cm and a height of 8cm face down. What is the depth of the water in centimeters at this time?
一个长方体容器长20cm，宽10cm，高8cm，里面水深5cm．把这个容器盖紧后，让宽10cm，高8cm的面朝下，这时里面的水深是多少厘米．
<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<gadget id="calculator">5 / 80</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">20 * 10 * (1/16)</gadget>
<output>25/2 = around 12.5</output>

<result>25/2 = around 12.5</result>