A batch of goods is 120 tons in total, 45 tons have already been transported, and the rest needs to be shipped 5 times. How many tons are shipped on average each time?
一批货物共120吨，已经运走了45吨，剩下的要求5次运完，平均每次运多少吨？
<gadget id="calculator">120 - 45</gadget>
<output>75</output>

<gadget id="calculator">75 / 5</gadget>
<output>15</output>

<result>15</result>