Question

An Egyptian mummy is found to contain 63 percent of the carbon 14 that it should. How old is this mummy?

a.) 3400 years
b.) 4600 years
c.) 4200 years
d.) 3800 years

Answer 1

This is half life problem

Answer 2

5730 years is the half life of C14 => Age of mummy is 5730(1-((0.63-0.5)/0.5)) = 4241 years

Answer 3

So 4200