A spray box is 2dm long, 1.5dm wide and 5dm high. If it is filled with liquid medicine, how many minutes will it take to spray a box of medicine at a rate of 500ml per minute?
一种喷雾器的箱子长2dm，宽1.5dm，高5dm．如果里面装满药液，按每分钟喷500ml计算，喷完一箱药需要多少分钟？
<gadget id="calculator">1_000 / 500</gadget>
<output>2</output>

<gadget id="calculator">2 * 1.5 * 5 * 1 * 2</gadget>
<output>30</output>

<result>30</result>