An engineering team laid an underground oil pipeline. A total of 350 meters were laid in the first 2 days, and the remaining 850 meters were laid in only 4 days. How many meters does this engineering team lay on average every day?
某工程队铺一条地下石油管道，前2天共铺了350米，剩下的850米只用4天就铺完了．这个工程队平均每天铺多少米？
<gadget id="calculator">350 + 850</gadget>
<output>1_200</output>

<gadget id="calculator">2 + 4</gadget>
<output>6</output>

<gadget id="calculator">1_200 / 6</gadget>
<output>200</output>

<result>200</result>