It takes 4 hours for a car to go back and forth from city A to city B. It is known that this car travels 80 kilometers per hour, so what is the distance from city A to city B?
一辆汽车从甲城到乙城一个来回要4小时，已知这辆汽车每小时行驶80千米，那么甲城到乙城的路程是多少？
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">80 * 2</gadget>
<output>160</output>

<result>160</result>