There was a math competition with 25 questions in total, 4 points for each correct answer, and 1 point deducted for each incorrect answer or failure to answer a question. Xiaoli scored 75 points. How many questions did she get right?
有一次数学竞赛，共有25道题，每做对一题得4分，做错一题或不做扣1分．小丽得了75分，她做对了几道题？
<result>9</result>