To build a 2,000-meter-long road, 150 meters per day for the first 8 days, and 160 meters per day after that, how many days will it take to complete the repair?
要修一条长2000米的公路，前8天每天修150米，以后如果每天修160米，还要多少天修完？
<gadget id="calculator">150 * 8</gadget>
<output>1_200</output>

<gadget id="calculator">2_000 - 1_200</gadget>
<output>800</output>

<gadget id="calculator">800 / 160</gadget>
<output>5</output>

<result>5</result>