When does the amount of medicine remaining in the body reach 60 milligrams?

Question

Responses

Between the 12th and 13th hour
Between the 12th and 13th hour

Between the 10th and 11th hour
Between the 10th and 11th hour

Between the 9th and 10th hour
Between the 9th and 10th hour

Between the 11th and 12th hour

Answer 1

Between the 11th and 12th hour