A car needs to transport 89 tons of goods, 31.5 tons are transported in the morning, and the rest are transported in 5 times in the afternoon. How many tons are transported in the afternoon on average?
一辆汽车要运89吨货物，上午运走31.5吨，其余的下午分5次运完，下午平均每次运多少吨？
<gadget id="calculator">89 - 31.5</gadget>
<output>57.5</output>

<gadget id="calculator">57.5 / 5</gadget>
<output>11.5</output>

<result>11.5</result>