cuboid fish tank measures 6 decimeters in length, 4 decimeters in width and 3 decimeters in height. If 36 liters of water are poured into the tank, how deep is the water in the tank? How big is the area of glass in contact with water?
一个长方体鱼缸，从里面量长6分米，宽4分米，高3分米，把36升水注入这个鱼缸，鱼缸里水深多少分米？接触水的玻璃面积有多大？
<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<gadget id="calculator">36 / 24</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">6 * (3/2) * 2</gadget>
<output>18</output>

<gadget id="calculator">4 * (3/2) * 2</gadget>
<output>12</output>

<gadget id="calculator">24 + 18 + 12</gadget>
<output>54</output>

<result>54</result>