A person walks from place A to place B. When he walks the whole distance (2/5), he is still 180 meters away from the midpoint. How many meters are there from place A to place B?
某人从甲地步行去乙地，当他走了全程的(2/5)时，离中点还有180米，甲地到乙地共有多少米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (1/2) - (2/5)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">180 / (1/10)</gadget>
<output>1_800</output>

<result>1_800</result>