Life’s a lot like a GMAT test, or vice versa.
It starts with questions/challenges of average difficulty. If you get the answer right, your next question will be slightly more difficult. If you get the answer wrong, your next question will be slightly easier. The underlying algorithm determines the level of difficulty of questions you are asked, based on your performance in answering previous questions. Difficult questions are weighted more heavily in scoring than easier questions. Eventually higher the level of difficulty you successfully tackle, higher the final score! 🙂