The volume of a cuboid water tank is 60L. The bottom of this water tank is a square with a side length of 20 cm. What is the height of the water tank in cm?
一个长方体水箱的容积是60L，这个水箱的底面是一个边长为20cm的正方形，水箱的高是多少厘米？
<gadget id="calculator">20 * 20</gadget>
<output>400</output>

<gadget id="calculator">1_000 / 400</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">60 * (5/2)</gadget>
<output>150</output>

<result>150</result>