The average of the three numbers A, B and C is 44, the average of the two numbers A and B is 40, the average of the two numbers B and C is 48, what is the average of the two numbers A and C?
甲、乙、丙三个数的平均数是44，甲、乙两数的平均数是40，乙、丙两数的平均数是48，甲、丙两数的平均数是多少．
<gadget id="calculator">44 * 3 * 2</gadget>
<output>264</output>

<gadget id="calculator">40 * 2</gadget>
<output>80</output>

<gadget id="calculator">48 * 2</gadget>
<output>96</output>

<gadget id="calculator">264 - 80 - 96</gadget>
<output>88</output>

<gadget id="calculator">88 / 2</gadget>
<output>44</output>

<result>44</result>