The park greening team plans to plant 1,200 trees this year. It has been planted for 4 days, with an average of 150 trees per day, and the remaining 160 trees per day. How many days will it take to finish planting?
公园绿化队今年计划植树1200棵，已经植了4天，平均每天植树150棵，剩下的每天植树160棵，还需几天植完？
<gadget id="calculator">150 * 4</gadget>
<output>600</output>

<gadget id="calculator">1_200 - 600</gadget>
<output>600</output>

<gadget id="calculator">600 / 160</gadget>
<output>15/4 = around 3.75</output>

<result>15/4 = around 3.75</result>