The speed of the maglev train is 225 kilometers per hour, which is 37.5 kilometers faster than twice that of ordinary trains. How many kilometers per hour is the speed of ordinary trains? (solution by equation)
磁悬浮列车的时速是225千米，比普通列车的2倍还快37.5千米，普通列车的时速是多少千米？(用方程解)
<gadget id="calculator">225 - 37.5</gadget>
<output>187.5</output>

<gadget id="calculator">187.5 / 2</gadget>
<output>93.75</output>

<result>93.75</result>