A rectangular fish tank is 6 decimeters long, 5 decimeters wide, and 40 centimeters high. How much water can it hold?
一个长方形鱼缸，长6分米，宽5分米，高40厘米，能装多少升水．
<gadget id="calculator">40 / 10</gadget>
<output>4</output>

<gadget id="calculator">6 * 5 * 4</gadget>
<output>120</output>

<result>120</result>