During the holiday, Uncle Wang is going to Qingdao for a trip. Uncle Wang’s home is 825 kilometers away from Qingdao, and he traveled 495 kilometers in 3 hours by train. How many hours will it take for Uncle Wang to arrive in Qingdao?
假期时间，王叔叔要去青岛旅游．王叔叔家到青岛825千米，他坐火车3小时行了495千米．王叔叔还需几小时到达青岛？
<gadget id="calculator">825 - 495</gadget>
<output>330</output>

<gadget id="calculator">495 / 3</gadget>
<output>165</output>

<gadget id="calculator">330 / 165</gadget>
<output>2</output>

<result>2</result>