Will i be able to qualify Jee advance 2015 if i study 20-22 hours per day?

Well it is impossible to study 20/22 hours per day you can manage it for one day !!
but no regularly,
See number of hours doesn''t ensure that you will be selected or not if you spent 1 hours and you cleared 1 topic completely,
Or you took 6 hours for same then both are equal, the main thing is concentration,
With concentration 6-7 hours (Except Coaching) is enough,
while preparation you must take care of your health because, if you suffer once , you will loose a-lot !!