There were 40,000 people for LRO and women seats were about 26 and merit dropped to 51 for women. Considering that women were 10,000 out of that 40,000 51 is very low merit , whereas for AD population total applicants(Male+Female) are 10, 218. So, merit for women could be as low as 50.

Also consider that girls are not very keen to study GK as compared to boys,and paper was much difficult as compared to all the past papers.