It takes 4 hours for a bus to travel from A to B, and it travels 55 kilometers per hour. The small car is 25 kilometers faster than the bus per hour. How many hours does it take for the small car to travel from A to B?
从A地到B地大客车要行4小时，每小时行55千米，小车比大客车每小时快25千米，小车从A地到B地要多少小时？
<gadget id="calculator">4 * 55</gadget>
<output>220</output>

<gadget id="calculator">55 + 25</gadget>
<output>80</output>

<gadget id="calculator">220 / 80</gadget>
<output>11/4 = around 2.75</output>

<result>11/4 = around 2.75</result>