Everyday Science
NULL
Medium
Question
Half-life is 8 days. How long to reduce 10 mg to 5 mg?
A
4 days
B
12 days
C
16 days
D
8 days
✓ Official correct answer
Community credibility
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A
4 days
No member explanations yet for this option.
B
12 days
No member explanations yet for this option.
C
16 days
No member explanations yet for this option.
D
8 days
No member explanations yet for this option.
Explanation
One half-life reduces amount by half, so 8 days.
So the correct answer is 8 days.
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