formula booklet erpretation For use during the course and in the examinations First examinations 2021 Version 1.1 Ted is also in a hospital and on his first day he receives a 20 mg antibiotic injection. The amount of the antibiotic Ted receives decreases by 50 % each day. On the second day, Ted receives a 10 mg antibiotic injection, on the third day he receives 5 mg, and so on. 3e. Find the amount of antibiotic, in mg, that Ted receives on the fifth day. [3 marks​