The speed of a train is 90 km/h, and the speed of the train is only (1/10) the speed of the fighter jet. What is the speed of the fighter jet in km/h?
一列火车的速度是90千米/小时，火车的速度仅是战斗机速度的(1/10)，战斗机速度是多少千米/小时．
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">90 / (1/10)</gadget>
<output>900</output>

<result>900</result>