Xiaohua got 14 questions, 12 questions, and 19 questions right in three oral calculations. On average, how many questions are correct each time.
晓华3次口算分别算对了14题、12题、19题．平均每次算对了多少题．
<gadget id="calculator">14 + 12 + 19</gadget>
<output>45</output>

<gadget id="calculator">45 / 3</gadget>
<output>15</output>

<result>15</result>