There are 18 True-or-False questions in Mathematics test. 2 marks will be given for each correct answer and 1 mark will be deducted for each wrong answer. If Mimi answers all the questions and gets 24 marks, how many correct answers has she got? (Ans. 14)
There are 18 true-or-False questions in a Mathematics test.2 marks will be given for each correct answer and 1 mark will be deducted for each wrong answer.If Mimi answers all the questions and gets 24 marks,how many correct answers has she got?