On a map with a scale of 1:5000000, the distance between A and B is 10 cm. If it is drawn on a map with a scale of 1:2000000, how many centimeters are the distance between the two places?
在比例尺是1：5000000的地图上，量得甲、乙两地相距10厘米，若将它画在1：2000000的地图上，两地相距多少厘米．
<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">10 / (1/5_000_000)</gadget>
<output>50_000_000</output>

<gadget id="calculator">1 / 2_000_000</gadget>
<output>1/2_000_000 = around 0</output>

<gadget id="calculator">50_000_000 * (1/2_000_000)</gadget>
<output>25</output>

<result>25</result>