Beijing Road Primary School held a math competition with a total of 20 questions. For every correct question, 10 points will be deducted, and for every wrong question, 5 points will be deducted. Wang Lei scored a total of 110 points. How many questions did he get right?
北京路小学举行数学竞赛共20题，每做对一题的10分，每做错一题倒扣5分，王磊共得了110分，他做对了几题？
<gadget id="calculator">20 * 10</gadget>
<output>200</output>

<gadget id="calculator">200 - 110</gadget>
<output>90</output>

<gadget id="calculator">10 + 5</gadget>
<output>15</output>

<gadget id="calculator">90 / 15</gadget>
<output>6</output>

<gadget id="calculator">20 - 6</gadget>
<output>14</output>

<result>14</result>