To build a road, 200 meters have been built, and the ratio of the length of the repaired to the remaining length is 2:3. How many meters is this road?
修一条公路，已经修了200米，已修的和剩下的长度比是2：3．这条公路长多少米？
<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">200 / (2/5)</gadget>
<output>500</output>

<result>500</result>