Xiao Min rides a bicycle from home to school, and it only takes 20 minutes to ride a bicycle every day. One day, because there are 2 kilometers of road construction on the way, she has to walk with a cart. The walking speed is 1/3 of that of a bicycle. It took 36 minutes to get to school. How many kilometers is it from Xiao Min's house to the school?
小敏骑自行车从家到学校，平均每天骑自行车都只需要20分钟，某天因途中有2千米正在修路，只好推车步行，步行速度是骑车的(1/3)，结果这天用了36分钟才到学校．小敏家到学校多少千米？
<gadget id="calculator">36 - 20</gadget>
<output>16</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / (1/3)</gadget>
<output>3</output>

<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) * 20</gadget>
<output>5</output>

<result>5</result>