Speed up your calculation 1
All MBA exams require fast calculation. Even 5-10 seconds saved per question will save you enough time to solve 3-4 more problems ultimately resulting in a better score.
So following things can be handy when you are solving a problem may be in QA and DI.
1. Squares of numbers from 1 to 30.
2. Multiplication Table from 1 to 20.
3. Power of 2 upto 10.
4. Power of 3 upto 5.
5. Reciprocal of numbers from 1 to 10.
6. Tricks for fast multiplication (You can get a lot of such tricks on internet, vedic mathematics etc. Get used to some of them but not all to make your calculation faster.)