There are four numbers, take three numbers at a time, calculate their average and add another number, calculate four times in this way, and get the following four numbers respectively: 86, 92, 100, 106 Then the original 4 What is the average of the numbers.
有四个数每次取三个数，算出它们的平均数再加上另一个数，用这种方法计算了四次，分别得到以下四个数：86，92，100，106那么原4个数的平均数是多少．
<gadget id="calculator">86 + 92 + 100 + 106</gadget>
<output>384</output>

<gadget id="calculator">384 / 2 / 4</gadget>
<output>48</output>

<result>48</result>