There are 80 tons of goods, and 4 trucks can transport them 5 times. How many tons can a truck transport on average each time?
有80吨货物，4辆卡车5次可以运完，一辆卡车平均每次可以运多少吨？
<gadget id="calculator">80 / 4 / 5</gadget>
<output>4</output>

<result>4</result>