A truck travels 227.5 kilometers in 3.5 hours, and the speed of a train is twice that of the truck. Find the speed of the train?
一辆货车3.5小时行了227.5千米，一列火车的速度是货车的2倍，求火车的速度？
<gadget id="calculator">227.5 / 3.5</gadget>
<output>65</output>

<gadget id="calculator">65 * 2</gadget>
<output>130</output>

<result>130</result>