A passenger ship departs from city A at 7:30 in the morning and arrives in city B at 4:00 pm. It is known that the passenger ship travels an average of 35 nautical miles per hour. How many nautical miles is the distance from city A to city B?
一艘客轮早上7：30从A市出发，到B市时已是下午4：00，已知客轮平均每小时行35海里，A市到B市的距离是多少海里？
<gadget id="calculator">35 * 8.5</gadget>
<output>297.5</output>

<result>297.5</result>