What percentage of questions (subjective) could you solve on your own from HC Verma? If I follow it rigorously (doing/trying every question), then how much can I score in the JEE advanced?

What percentage of questions (subjective) could you solve on your own from HC Verma? If I follow it rigorously (doing/trying every question), then how much can I score in the JEE advanced?

In starting stages, I was not able to solve more than 25% of the questions from HC verma,then I started to invest my time on the coaching packages and after a lot of improvement and after solving similar type and level question slowly and slowly , I started confidence in solving HC verma and after 11th its become my habit to solve HC verma…and I recall that in 12 th , I was able to solve 70–85% of HC verma and I learnt that it is not bad if you are not able to solve problems and by not losing confidence,u should try to go through the solution and try to revise this after 1–2 month again and I too solved hC Verma volume (class 11 th book) in 12th again.
It is a great book for jee aspirants and I can assure you that you are gonna get good marks in any competitive exam if you solve HC verma and coaching packages only. Suggestion -: theory is well and concisely written in HC verma,try to read it too.