My elder brother goes to college and has to take a train for 5.4 hours. The average speed of the train is 70.5 km/h. How many kilometers does he travel by train?
哥哥上大学，要做5.4小时的火车，火车的平均速度是70.5千米/时，他坐火车的路程是多少千米？
<gadget id="calculator">70.5 * 5.4</gadget>
<output>380.7</output>

<result>380.7</result>