Find the least number of complete years in which a sum of money put out at 15% compound interest will be more than double of itself?  Choices:
A) 5	B) 6	C) 7	D) 8	E) 9
5 years   5nswer: 5
<result>A</result>
Find the least number of complete years in which a sum of money put out at 15% compound interest will be more than double of itself?