You have 3 glasses that contain 8 oz each glass a your resident drinks only 3/4ths of it how much was consumed? how much was left?

The patient had a wire localization performed by radiology and was taken to the operating room. under local anesthesia of the left breast was prepped and draped in a sterile manner. a breast line incision was made through the entry point of the wire, and a core of tissue surrounding the wire approximately 1x2cm was removed