The engineering team repaired a road. On the first day, 10% of the total task was repaired, and on the second day, 12% of the total task was repaired. It is known that the second day is 40 meters longer than the first day. How long is the road in meters?
工程队修一条路，第一天修了总任务的10%，第二天修了总任务的12%o已知第二天比第一天多修40米，这条路长多少米．
<gadget id="calculator">12 / 100</gadget>
<output>3/25 = around 0.12</output>

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(3/25) - (1/10)</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">40 / (1/50)</gadget>
<output>2_000</output>

<result>2_000</result>