The distance between the two cities is 380 kilometers. A passenger train and a freight train depart from two cities at the same time and meet after 4 hours. It is known that the speed of the passenger car is 1.5 times the speed of the truck, how many kilometers per hour does the passenger car travel more than the truck per hour? (column equation solution)
两个城市相距380千米．一列客车和一列货车同时从两个城市相对开出，经过4小时后相遇．已知客车速度是货车速度的1.5倍，求客车每小时比货车每小时多走多少千米？(列方程解答)
<gadget id="calculator">4 * 1.5</gadget>
<output>6</output>

<gadget id="calculator">4 + 6</gadget>
<output>10</output>

<gadget id="calculator">380 / 10</gadget>
<output>38</output>

<gadget id="calculator">38 * 1.5</gadget>
<output>57</output>

<gadget id="calculator">57 - 38</gadget>
<output>19</output>

<result>19</result>