In how many years will a sum of money be doubled given that the annual interest on it is 10%? Choose the correct choice from the following answers
A) 11
B) 14
C) 13
D) 15
E) 10
P = (P*10*R)/100   R = 10%   Answer: 10
<result>E</result>
In how many years will a sum of money be doubled given that the annual interest on it is 10%?