On a map with a scale of 1:5000000, the distance between A and B is 16 cm. If a train takes 5 hours to travel from A to B, please calculate the speed of the train. ．
在一幅比例尺是1：5000000的地图上量得甲、乙两地间的距离是16厘米，如果一列火车从甲地行驶到乙地共用了5小时，请算一算这列火车的行驶速度．
<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">16 / (1/5_000_000) / 100_000 / 5</gadget>
<output>160</output>

<result>160</result>