hello akanksha226017

I hope you are doing  good . I would glad to aware you that for preparing the entrance of bca , you just need a proper roadmap rather than doing deep and highly conceptual questions.  Cracking a bca  entrance is very easy , you just need to go through some specific easy which you can hold good command . Their are many youtube channels from where you can study Logical ability sessions, mathematics and computer . Unacademy, aspire study , Sahil sir(railway exam channel) are the best from which you can prepare

Hope you found this answer helpful. Good luck for your future