In the construction of a road, 20% of the total length was repaired in the first quarter, which is exactly 4.8 kilometers. In the second quarter, 35% of the total length was repaired. How many kilometers were repaired in the second quarter?
修一条公路，第一季度修了全长的20%，正好是4.8千米，第二季度修了全长的35%，第二季度修了多少千米？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">4.8 / (1/5)</gadget>
<output>24</output>

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

<gadget id="calculator">24 * (7/20)</gadget>
<output>42/5 = around 8.4</output>

<result>42/5 = around 8.4</result>