A forest farm has to transport 7920 tons of timber. A train has 18 wagons, and each wagon holds 55 tons. How many trips does the train need to transport all the wood?
一个林场要运出7920吨木材．一列火车有18节车皮，每节车皮装55吨，这列火车需要运几趟才能把木材全部运完？
<gadget id="calculator">7_920 / 55 / 18</gadget>
<output>8</output>

<result>8</result>