A car travels 90 kilometers per hour, which is 40% slower than a train traveling in the same direction. What is the speed of this train in kilometers?
一辆小汽车每小时行驶90千米，比同向行驶的一列火车的速度慢40%，请问这辆火车的速度是多少千米？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">90 / (3/5)</gadget>
<output>150</output>

<result>150</result>