A certain engineering team repaired a road, repaired the full length (1/4) in the first week, and repaired 35% of the whole length in the second week, leaving 600 meters left. How long is this road in meters?
某工程队修一条路，第一周修了全长的(1/4)，第二周修了全程的35%，还剩600米．这条路全长多少米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">1 - (1/4) - (7/20)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">600 / (2/5)</gadget>
<output>1_500</output>

<result>1_500</result>