A sample has a activity of 0.0025 Bq per gram of carbon. (a) Find the age of the sample, assuming that the activity per gram of carbon in a living organism has been constant at a value of 0.23 Bq. (b) Evidence suggests that the value of 0.23 Bq might have been as much as 20% larger. Repeat part (a), taking into account this 20% increase.
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