On Sunday, Mom and Dad took Lele to the amusement park and bought tickets for 32.5 yuan. It is known that the price of one adult ticket is equal to that of two children's tickets. How much is an adult ticket?
星期天，爸爸妈妈带着乐乐去游乐园，买门票共用去32.5元，已知一张成人票与两张儿童票票价相等，一张成人票要多少元钱？
<gadget id="calculator">2 + 0.5</gadget>
<output>2.5</output>

<gadget id="calculator">32.5 / 2.5</gadget>
<output>13</output>

<result>13</result>