Find the least number of complete years in which a sum of money put out at 13% compound interest will be more than double of itself?  Choose the correct choice from the following
A) 5
B) 6
C) 7
D) 8
E) 9
6 years   Answer: 6
<result>B</result>
Find the least number of complete years in which a sum of money put out at 13% compound interest will be more than double of itself?