On a map with a scale of 1:2000000, the distance between A and B is 10 cm. A car drives from A to B at 60 kilometers per hour. how far?
在一幅比例尺是1：2000000的地图上，量得甲、乙两地相距10厘米，一辆汽车从甲地开往乙地，每小时行60千米，行驶2.5小时后，离乙地还有多远？
<gadget id="calculator">1 / 2_000_000</gadget>
<output>1/2_000_000 = around 0</output>

<gadget id="calculator">10 / (1/2_000_000) / 100_000</gadget>
<output>200</output>

<gadget id="calculator">60 * 2.5</gadget>
<output>150</output>

<gadget id="calculator">200 - 150</gadget>
<output>50</output>

<result>50</result>