The half-life of caffeine in your body is about 6 hours. If you had 1 cup of coffee 9 hours ago how much is left in your system?
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Step-by-step explanation:
half life given = 6 hrs
u had coffee before 9 hrs
1st half life is done in 6 hrs
2nd half life takes place after 6 hrs but it is jut 3 hrs is passed only 50 percent of half life is taken place
∴12.5 percent of caffeine is left in your body
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