To strengthen your time management abilities, you must take mock examinations and complete sample papers. It will assist you in working under pressure
It would be best to devote more time to understanding and, more crucially, to practice the most significant subjects that carry the greatest weightage in your placement exams.
There are a lot of equations, concepts, and formulas in Quantitative Aptitude. On a piece of paper, note down the significant ones that you will need to remember.
You should use the method of elimination as a backup method whenever you're trapped with a problem.