On a map, the distance between cities A and B is 320km, and the distance drawn on the map is only 16cm. On this map, the distance between cities B and C is 240km. How many centimeters should be drawn on the map?
在一幅地图上，甲、乙两城相距320km，画在图上只有16cm，在这幅地图上，乙、丙两城相距240km，在图上应画多少厘米？
<gadget id="calculator">16 / 320</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(1/20) * 240</gadget>
<output>12</output>

<result>12</result>