The distance between AB and AB is 320 kilometers, the passenger car travels 45 kilometers per hour, and the truck travels 35 kilometers per hour. When the two cars meet, how many kilometers will the passenger car travel more than the truck?
AB两地相距320千米，客车每小时行45千米，货车每小时行35千米，两车相遇时客车比货车多行多少千米？
<gadget id="calculator">45 + 35</gadget>
<output>80</output>

<gadget id="calculator">320 / 80</gadget>
<output>4</output>

<gadget id="calculator">45 * 4</gadget>
<output>180</output>

<gadget id="calculator">35 * 4</gadget>
<output>140</output>

<gadget id="calculator">180 - 140</gadget>
<output>40</output>

<result>40</result>