Obviously he is drawing a plan, but he uses 1 centimeter on the picture to represent the actual distance of 500 meters, and how many centimeters should be drawn for a distance of 1.5 kilometers.
明明在画平面图，他用图上1厘米表示实际距离500米，1.5千米的距离要画多少厘米．
<gadget id="calculator">1.5 * 1_000</gadget>
<output>1_500</output>

<gadget id="calculator">1_500 / 500</gadget>
<output>3</output>

<result>3</result>