any shortcut to study number series
As more you are familiar with different kind of series..later you will be able to solve them easily
Read only S. Chand book for series this is sufficient
Practice.... d more you work on it, more efficient you will become...
only practise is d shortcut.....
There are no shortcuts, there are multiple books specific to quant which are good like RS Agarwal and PK Mittal.
The bank power quant course is also useful.. Hope this helps