The campus of a certain elementary school is 200 meters long, and it is 20 centimeters drawn on the plan. The width of the campus is measured to be 150 meters. How many centimeters should be drawn on this drawing?
某小学的校园长200米，画在平面图上是20厘米，量得校园宽是150米，在这张图纸上应画多少厘米？
<gadget id="calculator">1 / 1_000</gadget>
<output>1/1_000 = around 0.001</output>

<gadget id="calculator">15_000 * (1/1_000)</gadget>
<output>15</output>

<result>15</result>