Yeah, solving previous years papers of WBJEE does help you with getting accustomed with the Pattern as well as the Mathematics Section, which is concerned to be lengthier and on the tougher side in WBJEE. Besides WBJEE Papers, you should also get prepared with a strong preparation for JEE and the JEE Main Previous Years Papers for a Better Preparation for WBJEE.

For more information about WBJEE Preparation do follow the link below

https://engineering.careers360.com/articles/how-prepare-for-wbjee