The Wuhan-Guangzhou high-speed railway has been put into operation, and its running speed can reach 350 kilometers per hour. The ordinary train is slower than it (23/35). What is the speed of the ordinary train?
武广高铁投入运营，运行速度可达到每小时350千米，普通列车比它慢(23/35)，普通列车的速度是多少．
<gadget id="calculator">23 / 35</gadget>
<output>23/35 = around 0.657143</output>

<gadget id="calculator">350 * (23/35)</gadget>
<output>230</output>

<gadget id="calculator">350 - 230</gadget>
<output>120</output>

<result>120</result>