A substance has a half of 3mins. after 6mins. the count rate was observed to be 400. What was its count rate at zero time? - SchoolNGR

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A substance has a half of 3mins. after 6mins. the count rate was observed to be 400. ...

A substance has a half of 3mins. after 6mins. the count rate was observed to be 400. What was its count rate at zero time?

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Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE

A 200
B 1200
C 1600
D 2400

Correct Answer: Option C

Explanation:

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