To build a 2,875-kilometer-long railway, 425 kilometers have been built, and the rest is planned to be completed in 5 days. How many kilometers do you repair on average per day?
修一条长2875千米的铁路，已经修了425千米，剩下的计划5天修完．平均每天要修多少千米？
<gadget id="calculator">2_875 - 425</gadget>
<output>2_450</output>

<gadget id="calculator">2_450 / 5</gadget>
<output>490</output>

<result>490</result>