12. You are about to take a test which contains questions of Type A worth 10 points each and Type B worth 5 points each. You must complete the test in 60 minutes. Type A questions take 4 minutes and type B questions take 6 minutes. The total number of problems worked must not exceed 10. If you are told that you must work at least 3 questions of Type B, how many of each type of question must you do to maximize your score? What is the maximum score