I was able to do 70 push ups in a day that was yesterday  to be precise in five set. Three in de morning ( 20, 10, 10). And two in de evening(15, 15). Making it a total of 70 push ups. Though it was not really easy since it was my first time of joining de challenge but I believe with constant practice and dedication de 100 push ups will be a reality and I can be able to do in one set in a day.