There are 126 tons of goods in a certain warehouse, which have been transported 4 times, with an average of 13.5 tons each time, and the remaining goods have to be shipped 3 times, how many tons should be transported each time on average?
某仓库有货物126吨，已经运了4次，平均每次运走13.5吨，剩下的货物要3次运完，平均每次应运多少吨？
<gadget id="calculator">4 * 13.5</gadget>
<output>54</output>

<gadget id="calculator">126 - 54</gadget>
<output>72</output>

<gadget id="calculator">72 / 3</gadget>
<output>24</output>

<result>24</result>