A car travels 243 kilometers in 3 hours, and a train travels 606 kilometers in 6 hours. How much faster is the speed of the train than the speed of the car?
汽车3小时行驶243千米，火车6小时行驶606千米，火车的速度比汽车的速度快多少千米？
<gadget id="calculator">606 / 6</gadget>
<output>101</output>

<gadget id="calculator">243 / 3</gadget>
<output>81</output>

<gadget id="calculator">101 - 81</gadget>
<output>20</output>

<result>20</result>