I know exactly what you are asking for.

Unfortunately, to get an A on an exam without studying is impossible unless you cheat. But that’s not what you are asking for, you just want to pass.

But passing exams without studying is totally possible.

Here’s how:

  1. Pay attention in class and try to anticipate what your teacher might test you on based on voice tone, repeating sentences/words…etc.
  2. Ask all your questions at the end of the class and leave no misunderstand behind at the end of the day.

Bonus: Preview a class and write down some questions you have.

Do all that and you don’t need to study to pass exams (again, just to pass). To get an A you do need to study unless you have a photographic memory.