A car travels 15.2 kilometers in 0.5 hours. According to this calculation, how many hours does it take to travel 228 kilometers?
一辆汽车0.5小时行驶15.2千米，照这样计算，行驶228千米需要多少小时？
<gadget id="calculator">15.2 / 0.5</gadget>
<output>30.4</output>

<gadget id="calculator">228 / 30.4</gadget>
<output>7.5</output>

<result>7.5</result>