The engineering team laid 49.6 meters in the first 4 days. In the last 8 days, 132.8 meters were laid. How many meters are laid per day on average?
工程队前4天铺设了49.6米．后8天铺设了132.8米．平均每天铺设多少米？
<gadget id="calculator">49.6 + 132.8</gadget>
<output>182.4</output>

<gadget id="calculator">4 + 8</gadget>
<output>12</output>

<gadget id="calculator">182.4 / 12</gadget>
<output>15.2</output>

<result>15.2</result>