The road repair team wanted to repair a road. The original plan was to repair 0.25 kilometers per day, but the actual repair was 0.05 kilometers more than the original plan every day. After 10 days, there was still 0.8 kilometers left unrepaired. How long is this road?
修路队要修一条公路，原计划每天修0.25千米，实际每天比原计划多修0.05千米，10天后还差0.8千米没有修．这条路有多长？
<gadget id="calculator">0.25 + 0.05</gadget>
<output>0.3</output>

<gadget id="calculator">0.3 * 10</gadget>
<output>3</output>

<gadget id="calculator">3 + 0.8</gadget>
<output>3.8</output>

<result>3.8</result>