How much can I score in the MAKAUT exams if I only solve an organizer?

If you are only interested in scoring good marks and not gaining any knowledge in the process, then yes a month of mugging up an organizer is more than enough to get an 8+ CGPA. You can adopt this strategy till the 4th semester at the most. Soon you will regret it and realize you have been playing with your own future. 

Organizer is the escape from the understanding of concepts, a shortcut devised for those who are below average in studies. It does nothing to clarify your concepts and will give you short-term benefits only. 

In the final year it will hit you that you have wasted 4 years doing nothing and now getting jobs or preparing for competitive exams become a big task. Ultimately you will impact your career big time so it’s better to undo the mistake as soon as possible.