A passenger car and a truck depart from A and B at the same time and meet on the way after 4.2 hours. The speed ratio of the passenger car and the truck is 5:6, and the passenger car travels 40 kilometers per hour. How many kilometers is the road between A and B?
客车和货车同时从甲、乙两地相向驶出，经过4.2小时在途中相遇．客车和货车的速度比是5：6，客车每时行40千米，甲、乙两地间的公路长多少千米？
<gadget id="calculator">6 / 5</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">40 * (6/5)</gadget>
<output>48</output>

<gadget id="calculator">40 + 48</gadget>
<output>88</output>

<gadget id="calculator">88 * 4.2</gadget>
<output>369.6</output>

<result>369.6</result>