The distance between A and B cities is 670 kilometers. A passenger train departs from A to B at 8:10 in the morning and travels at a speed of 65 kilometers per hour; a freight train departs from 9:10 in the morning and travels at 45 kilometers per hour. The speed of meters starts from point B to point A. How many hours after the trucks drive, the two vehicles meet?
甲乙两城相距670千米，一列客车从早上8：10出发，以每小时行65千米的速度从甲地出发开往乙地；一列货车从早上9：10出发，以每小时行45千米的速度从乙地出发开往甲地，货车行驶了几小时后两车相遇？
<gadget id="calculator">65 * 1</gadget>
<output>65</output>

<gadget id="calculator">670 - 65</gadget>
<output>605</output>

<gadget id="calculator">65 + 45</gadget>
<output>110</output>

<gadget id="calculator">605 / 110</gadget>
<output>11/2 = around 5.5</output>

<result>11/2 = around 5.5</result>