A construction team builds a road, first repairs the full length (1/4), and then repairs the rest (1/4). At this time, it is still 600 meters away from the midpoint. How many kilometers is the total length of this road?
某建筑队修一条公路，先修好了全长的(1/4)，又修好了余下的(1/4)，这时距中点还有600米，这条公路全长多少千米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/4) * (1/4)</gadget>
<output>3/16 = around 0.1875</output>

<gadget id="calculator">(1/2) - (1/4) - (3/16)</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">600 / (1/16) / 1_000</gadget>
<output>48/5 = around 9.6</output>

<result>48/5 = around 9.6</result>