Hello himanshu your questions is not clear to help you but as per my understanding you are asking about your qulaifying jee or not to be able to sit in jee advance . See 47-49 marks in jee mains is less but still sometimes cutoff goes down so yess there is chance of your to qualify jee mains and about jee advance your jee mains score creates no affect as some students who fails to score good in mains excel in advance..

Best of luck