After measurement, our classroom is 8 meters long and 6 meters wide. If the length is 4 cm on the drawing, how many centimeters should the width be?
经过测量，我们教室长8米，宽6米．如果在图纸上长画4厘米，宽应画多少厘米
<gadget id="calculator">8 * 100</gadget>
<output>800</output>

<gadget id="calculator">4 / 800</gadget>
<output>1/200 = around 0.005</output>

<gadget id="calculator">6 * 100 * (1/200)</gadget>
<output>3</output>

<result>3</result>