The distance between A and B is 990 kilometers. It takes 11 hours for a truck to drive from city A to city B. How many kilometers per hour does the truck travel on average?
甲、乙两地相距990千米，一辆货车从甲城开往乙城用了11时，这辆货车平均每时行多少千米？
<gadget id="calculator">990 / 11</gadget>
<output>90</output>

<result>90</result>