In what time a sum of money double itself at 4% per annum simple interest?
Choose the most appropriate option
A) 33 1/8% B) 33 1/3% C) 33 7/3% D) 32 1/3% E) 25 %
P = (P*4*R)/100   R = 25%   Answer: 25 %
<result>E</result>
In what time a sum of money double itself at 4% per annum simple interest?