Xiao Zhao rode his bicycle from home to pick up his friends at the station, and he covered half of the journey in 30 minutes. At this time, he speeded up and traveled 50 meters more per minute than before. After another 20 minutes of riding, she saw from the mileage sign next to the station that there were still 2 kilometers away. How many meters is the station at Xiao Zhao's house?
小赵从家骑车去车站接朋友，他用30分钟行完了一半路程．这时，他加快了速度，每分钟比原来多行50米，又骑了20分钟后，她从旁的里程标志牌看到离车站还有2千米．小赵家里车站多少米．
<gadget id="calculator">2 * 1_000</gadget>
<output>2_000</output>

<gadget id="calculator">50 * 20</gadget>
<output>1_000</output>

<gadget id="calculator">2_000 + 1_000</gadget>
<output>3_000</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) / 30</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">(1/60) * 20</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/2) - (1/3)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">3_000 / (1/6)</gadget>
<output>18_000</output>

<result>18_000</result>