The distance between A and B is 720 kilometers. It takes 9 hours for a car to drive from A to B. How many kilometers per hour does the car drive on average?
甲乙两地相距720千米，一辆汽车从甲地开往乙地需要9小时，这辆汽车平均每小时行驶多少千米？
<gadget id="calculator">720 / 9</gadget>
<output>80</output>

<result>80</result>