Pour 64 liters of water into a cuboid water tank with a length of 8dm and a width of 2.5dm, just full. What is the height of the tank in dm.
把64升水倒入一个长为8dm，宽为2.5dm的长方体水箱内，正好倒满．这个水箱的高是多少dm．
<gadget id="calculator">8 * 2.5</gadget>
<output>20</output>

<gadget id="calculator">60 / 20</gadget>
<output>3</output>

<result>3</result>