To build a road, 20% of the total length was repaired on the first day, and 35% of the total length was repaired on the second day. On the first day, 330 meters were repaired less than on the second day. How many meters is the total length?
修一条公路，第一天修了全长的20%，第二天修了全长的35%，第一天比第二天少修了330米，全长有多少米？
<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

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

<gadget id="calculator">(7/20) - (1/5)</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">330 / (3/20)</gadget>
<output>2_200</output>

<result>2_200</result>