The distance between A and B is 810 kilometers. The truck travels from A to B for 9 hours. What is the correct speed of the truck?
甲乙两地相距810千米，卡车从甲地到乙地行了9小时，求卡车的速度正确列式是多少
<gadget id="calculator">810 / 9</gadget>
<output>90</output>

<result>90</result>