A car leaves City A at 8:30 and arrives at City B at 15:30. The road between A and B is 574 kilometers long. How many miles per hour does the car travel on average?
一辆车8：30从甲城开出，15：30到达乙城，甲乙两城的公路长574千米．这辆汽车平均每小时行多少千米？
<gadget id="calculator">574 / 7</gadget>
<output>82</output>

<result>82</result>