The distance between A and B is 274 kilometers. A bus leaves from A and travels 95 kilometers per hour. After a while, it is 84 kilometers away from B. How many hours has this bus been driving?
甲乙两地相距274千米，一辆客车从甲地开出，每小时行驶95千米，一段时间后，离乙地还有84千米．这辆客车已经行驶了几小时？
<gadget id="calculator">274 - 84</gadget>
<output>190</output>

<gadget id="calculator">190 / 95</gadget>
<output>2</output>

<result>2</result>