An airplane flies 800 kilometers per hour, 125 kilometers more than 4.5 times the speed of a train. How many kilometers per hour does the train travel? (column equation solution)
一架飞机每小时飞行800千米，比一辆火车速度的4.5倍还多125千米．这辆火车每小时行驶多少千米？(列方程解答)
<gadget id="calculator">800 - 125</gadget>
<output>675</output>

<gadget id="calculator">675 / 4.5</gadget>
<output>150</output>

<result>150</result>