A passenger car travels from A to B at 45 kilometers per hour, and after 8 hours, it is still 20 kilometers away from the midpoint. How many kilometers are there between A and B?
一辆客车从甲地开往乙地，每小时行45千米，行了8小时离中点还有20千米．甲乙两地相距多少千米？
<gadget id="calculator">45 * 8</gadget>
<output>360</output>

<gadget id="calculator">360 + 20</gadget>
<output>380</output>

<gadget id="calculator">380 * 2</gadget>
<output>760</output>

<result>760</result>