1 centimeter on a map represents an actual distance of 40 kilometers. The distance between A and B is 140km, how many centimeters should it be drawn on this picture?
一幅图图上1厘米代表实际距离40千米．A、B两地相距140km，画在这幅图上应是多少cm．
<gadget id="calculator">140 / 40</gadget>
<output>7/2 = around 3.5</output>

<result>7/2 = around 3.5</result>