After 25 days of repairing a section of 843-meter-long road, there are still 18 meters left to be repaired. How many meters are repaired per day on average?
修一段长843米的公路，修了25天后，还剩18米没有修完，平均每天修路多少米？
<gadget id="calculator">843 - 18</gadget>
<output>825</output>

<gadget id="calculator">825 / 25</gadget>
<output>33</output>

<result>33</result>