The sum of the two numbers A and B is 176. If the number C is added, the average of the three numbers is 3 more than the average of the two numbers A and B. What is the number C?
有甲、乙两个数的和是176，如果加上丙数，这时3个数的平均数比甲乙两数平均数多3，丙数是多少．
<gadget id="calculator">176 / 2</gadget>
<output>88</output>

<gadget id="calculator">88 + 3</gadget>
<output>91</output>

<gadget id="calculator">91 * 3</gadget>
<output>273</output>

<gadget id="calculator">273 - 176</gadget>
<output>97</output>

<result>97</result>