The distance between A and B is 405 kilometers. A car travels 180 kilometers from A to B in 4 hours. At this speed, how many more hours will the car reach point B?
甲乙两地相距405千米，一辆汽车从甲地开往乙地，4小时行驶了180千米．照这样的速度，再行驶多少小时，这辆汽车就可以到达乙地？
<gadget id="calculator">405 - 180</gadget>
<output>225</output>

<gadget id="calculator">180 / 4</gadget>
<output>45</output>

<gadget id="calculator">225 / 45</gadget>
<output>5</output>

<result>5</result>