train (3/4) travels 90 kilometers in an hour. Calculated at this speed, it takes 3 hours for the train to travel from A to B. How many kilometers are there between A and B?
一列火车(3/4)小时行90千米，照这样的速度计算，这列火车从甲地开往乙地需要行3小时，甲乙两地相距多少千米？
<gadget id="calculator">90 * 3</gadget>
<output>270</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">270 / (3/4)</gadget>
<output>360</output>

<result>360</result>