Answer:
Explanation:
Given that a substance decays exponentially at the rate of k times the population present.
k = 0.00011
Q0 is the initial population, and Q(t) is the population at time t.
Relationship is given by

Let after t years there is half life
Then 1/2 =

Take log
t = -ln2 /(-0.00011) = 6301.34 years