Task: Question Answering
Input (English): Problem: in an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. if he attempts all 200 questions and secures 240 marks, the number of questions he attempts incorrectly, is :
Options: a. 135, b. 200, c. 140, d. 112, e. 48
Output (English): d