The distance between Jinan and Qingdao is 380 kilometers. The bus travels 76 kilometers per hour, and the car travels 95 kilometers per hour. The two cars drive from Jinan to Qingdao at the same time. How many hours before the bus arrives?
济南与青岛相距380千米．大客车每小时行76千米，小汽车每小时行95千米，两车同时从济南开往青岛，小汽车比大客车提前几小时到达？
<gadget id="calculator">380 / 76</gadget>
<output>5</output>

<gadget id="calculator">380 / 95</gadget>
<output>4</output>

<gadget id="calculator">5 - 4</gadget>
<output>1</output>

<result>1</result>