A car travels 320 kilometers in 4 hours, and it takes a total of 7 hours for this car to travel from city A to city B. What is the distance in miles between A and B?
一辆汽车4小时行了320公里，这辆汽车从甲城出发到乙城总共用了7小时．甲、乙两城之间距离多少千米？
<gadget id="calculator">320 / 4</gadget>
<output>80</output>

<gadget id="calculator">80 * 7</gadget>
<output>560</output>

<result>560</result>