Bus No. 35 dispatches one car every 50 seconds during rush hour. From 3:54 p.m. to 4:9 p.m., how many cars can be dispatched at most?
35路汽车上下班高峰时每50秒发一辆车，从下午3时54分到4时9分，最多可发车多少辆？
<gadget id="calculator">900 / 50</gadget>
<output>18</output>

<result>18</result>