In the process of glycolysis, 38 molecules of pyruvic acid were formed. How many glucose molecules have been cleaved

In the process of glycolysis, 38 molecules of pyruvic acid were formed. How many glucose molecules have been cleaved and how many ATP molecules are formed when they are completely oxidized?

1) during glycolysis, one glucose molecule is cleaved to form two molecules of pyruvic acid (PVA), therefore, 38: 2 = 19 glucose molecules underwent glycolysis;
2) with complete oxidation of one glucose molecule (oxygen-free and oxygen stages) 38 ATP molecules are formed;
3) when 19 glucose molecules are oxidized, 19 x 38 = 722 ATP molecules are formed.