An engineering team repaired 600 meters on the first day, 20% of the total length on the second day, and 25% of the total length on the third day. At this time, 75% of the total length was repaired. How long is this road in meters?
某工程队，第一天修600米，第二天修全长的20%，第三天修了全长的25%，这时修了的占全长的75%，这条公路全长多少米？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(3/4) - (1/5) - (1/4)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">600 / (3/10)</gadget>
<output>2_000</output>

<result>2_000</result>