A cuboid fish tank measures 5 decimeters in length, 2 decimeters in width and 3 decimeters in height. If 20 liters of water are poured into this fish tank, how many decimeters is the water depth in the fish tank?
一个长方体鱼缸，从里面量长5分米、宽2分米、高3分米．把20升水注入这个鱼缸，鱼缸里的水深多少分米？
<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">20 / 10</gadget>
<output>2</output>

<result>2</result>