A classroom is 10 meters long and 6 meters wide. There are 40 students in the classroom. What is the average floor area per person?
一教室长10米，宽6米，教室里有学生40人，平均每人占地面积是多少平方米？
<gadget id="calculator">6 / 40</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">10 * (3/20)</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>