The speed of a maglev train in a certain place is 430.2 kilometers per hour, which is 0.72 kilometers more than three times the speed of ordinary trains. How many kilometers per hour does an ordinary train travel? (Solution of column equation)
某地的磁悬浮列车行驶的速度为每小时430.2千米，比普通列车行驶速度的3倍还多0.72千米，普通列车每小时行驶多少千米？(列方程解)
<gadget id="calculator">430.2 - 0.72</gadget>
<output>429.48</output>

<gadget id="calculator">429.48 / 3</gadget>
<output>143.16</output>

<result>143.16</result>