Cars A and B leave from station A at the same time in the same direction. Car A travels 40 kilometers per hour, and car B travels 1.2 times faster than car A. After driving for 3.8 hours, how many kilometers are there between the two cars?
甲、乙两车同时从甲站同向开出，甲车每小时行40千米，乙车的速度是甲车的1.2倍，行了3.8小时后，两车相距多少千米？
<gadget id="calculator">40 * 1.2</gadget>
<output>48</output>

<gadget id="calculator">48 * 3.8</gadget>
<output>182.4</output>

<gadget id="calculator">40 * 3.8</gadget>
<output>152</output>

<gadget id="calculator">182.4 - 152</gadget>
<output>30.4</output>

<result>30.4</result>