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April 19, 2014

April 19, 2014

Posted by **Gajender Goswami** on Tuesday, April 2, 2013 at 6:13am.

- DPS -
**Steve**, Tuesday, April 2, 2013 at 10:41amthe time involved is 9+12 = 21 hours, or 1.69 half-lives

so, we need to find P where

30 = P*(1/2)^1.69

P = 96.8

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