A truck compartment is 20m long, 3m wide, and 2.5m high when measured from the inside. The average cargo weight per cubic meter is 2 tons. How many trucks?
一节货车车厢，从里面量长20m，宽3m，高2.5m，平均每立方米的货物重2吨，如果用载重量为15吨的货车把装满这节车厢的货物一次运走，需多少辆货车？
<gadget id="calculator">300 / 15</gadget>
<output>20</output>

<result>20</result>