Question 380099
Interest rate = 8.35%
Let principal be $ 100
double your money = $200 
So interest = $200-100=$100
n = number of years
...
I= p*r*n
100=100*0.0835*n
n= 100/100 *0.0835
n=1/0.0835
n= 11.97 years
Say 12 years
...
m.ananth@hotmail.ca