For NCLEX Exam, a maximum of 6 hours to complete the exam, meaning if you are required to answer all 265 questions, you will only have an average of 1 minute and 21 seconds to complete each question. Many nursing students make the mistake of preparing only for the minimum 75 questions. In your test exam prep, you must subject yourself to practice rounds with more than 75 questions. Otherwise, you may lack the mental fortitude to concentrate for up to the 6 hours the exam may last.