adults lead a few students to the park, the adult ticket price is 18 yuan per person, and the student ticket price is 6 yuan lower than the adult ticket price. If it costs 186 yuan to buy tickets, how many students are there?
3个成人带领几个学生去公园，成人票价每人18元，学生票价比成人票价低6元．如果买门票共花去186元，那么学生有多少人？
<gadget id="calculator">18 * 3</gadget>
<output>54</output>

<gadget id="calculator">186 - 54</gadget>
<output>132</output>

<gadget id="calculator">18 - 6</gadget>
<output>12</output>

<gadget id="calculator">132 / 12</gadget>
<output>11</output>

<result>11</result>