120 sixth-grade students passed the exam in Chinese, mathematics, and foreign languages. The average percentage of passers was 85%, 114 passed Chinese, 100 passed foreign languages, and how many passed math?
六年级学生120人在考试中语文、数学、外语三科及格百分比平均为85%，语文及格114人，外语及格100人，数学及格多少人？
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">(17/20) * 3</gadget>
<output>51/20 = around 2.55</output>

<gadget id="calculator">114 / 120</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">100 / 120</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(51/20) - (19/20) - (5/6)</gadget>
<output>23/30 = around 0.766667</output>

<gadget id="calculator">120 * (23/30)</gadget>
<output>92</output>

<result>92</result>