Use a car to transport a bunch of goods, after transporting 3 times, there are still 9.2 tons that have not been transported. It is known that this pile of goods has a total of 20 tons, how many tons are transported by the car each time?
用一辆汽车运一堆货物，运了3次后还剩9.2吨没有运．已知这堆货物共有20吨，汽车每次运多少吨？
<gadget id="calculator">20 - 9.2</gadget>
<output>10.8</output>

<gadget id="calculator">10.8 / 3</gadget>
<output>3.6</output>

<result>3.6</result>