M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:

Heavy smokers can have up to a 50% increase in the half-life of caffeine metabolism from 6 hours for an average non-smoker to 9 hours for an average heavy smoker. How much longer would it take an average heavy smoker to metabolize 75% of a caffeine dose compared to the same dose in an average non-smoker?

A

3 hours

B

6 hours

C

9 hours

D

12 hours