There are four bags of sugar, choose 3 bags of them each time, calculate the average weight of these three bags, add the weight of the other bag, use this method to calculate 4 times, and get the following 4 kinds of weights respectively 8.8 kg, 9.6 Kilograms, 10.4 kilograms, 11.2 kilograms, then how many kilograms does each of these four bags of sugar weigh on average?
有四包糖，每次选出其中的3包，算出这三包的平均重量，再加上另一包的重量，用这种方法算了4次，分别得到下面4种重量8.8千克，9.6千克，10.4千克，11.2千克那么这四包糖平均每包重多少千克．
<gadget id="calculator">8.8 + 9.6 + 10.4 + 11.2</gadget>
<output>40</output>

<gadget id="calculator">40 / 2 / 4</gadget>
<output>5</output>

<result>5</result>