The quotient of number A divided by number B is 8, and the remainder is 9. Given the sum of number A, number B, quotient and remainder is 125, what is the number of B?
甲数除乙数的商是8，余数为9，已知甲数，乙数，商，余数的和为125，乙数是多少．
<gadget id="calculator">125 - 9 - 8 - 9</gadget>
<output>99</output>

<gadget id="calculator">1 + 8</gadget>
<output>9</output>

<gadget id="calculator">99 / 9</gadget>
<output>11</output>

<gadget id="calculator">8 * 11</gadget>
<output>88</output>

<gadget id="calculator">88 + 9</gadget>
<output>97</output>

<result>97</result>