Approximately how long would it take for a 370 GBq (10 Ci) Co-60 sourc – McqOptions

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1.	Approximately how long would it take for a 370 GBq (10 Ci) Co-60 source to decay to 92.5 GBq (2.5 Ci)?
A.	5.3 days
B.	5.3 years
C.	10.6 days
D.	10.6 years
Answer» E.

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