Dear student,

Acc. To previous years statistics approximately 55%-60% paper come from 12 th topics ( although it may change sometimes). So, you can get quite a marks if you have done 12 maths perfectly.

But leaving a huge portion of 11 is not a smart move. There are various easy topics like statistics, probability, sequence and series etc. in which you can score easily. Recommendation is don't leave any major topic just do it to atleast easy to moderate level.