The average of the two numbers A and B is 14, the average of the two numbers B and C is 18, and the average of the two numbers A and C is 16. What is the average of A, B, and C?
甲、乙两数的平均数是14，乙、丙两数的平均数是18，甲、丙两数的平均数是16．甲、乙、丙三数的平均数是多少．
<gadget id="calculator">14 * 2</gadget>
<output>28</output>

<gadget id="calculator">18 * 2</gadget>
<output>36</output>

<gadget id="calculator">16 * 2</gadget>
<output>32</output>

<gadget id="calculator">28 + 36 + 32</gadget>
<output>96</output>

<gadget id="calculator">96 / 2 / 3</gadget>
<output>16</output>

<result>16</result>