what do you mean by 60rank that is how much marks
Rank means your position in the merit from the top. If your Rank is 60 It means only 59 candidates are better than you in that exam, You perform better than rest of all. If you know the only rank then It is impossible to predict marks and vice versa since every exam has different Marks vs Rank Trends. If you know exam and rank then You can predict Marks.