Beijie Primary School held an English competition, 10 points were awarded for each correct answer, and 2 points were deducted for each wrong answer. There were 15 questions in total. Xiaohong scored 102 points. How many questions did Xiaohong answer correctly?
北街小学进行英语竞赛，答对一题得10分，答错一题倒扣2分，共15题．小红得了102分，小红答对了几题？
<gadget id="calculator">15 * 10</gadget>
<output>150</output>

<gadget id="calculator">150 - 102</gadget>
<output>48</output>

<gadget id="calculator">10 + 2</gadget>
<output>12</output>

<gadget id="calculator">48 / 12</gadget>
<output>4</output>

<gadget id="calculator">15 - 4</gadget>
<output>11</output>

<result>11</result>