Woody organised a quiz night in the toy room. He asked $25$ questions.  For each correct answer you gained $4$ points.  For each incorrect answer you lost $2$ points.  For each question you did not attempt you scored $0$ point.  Rex answered all but one of the questions and got a score of $66$ points.  How many correct answers did he have? 
Overseas Competition->Knowledge Point->Word Problem Modules->Chicken-Rabbit Problems->Solving Chicken-Rabbit Problems by Using Hypothesis->Deducting Marks