At what rate percent of simple interest will a sum of money double itself in 22 years? Choose the correct choice from the following answers:
A) 6.54 %	B) 4.54 %	C) 8 .2 %	D) 4.94 %	E) 5.54 %
Let sum = x. Then, S.I. = x.   Rate = (100 * S.I.) / (P * T) = (100 * x) / (x * 22)   = 100/22 = 4.54 %   ANSWER:4.54 %
<result>B</result>
At what rate percent of simple interest will a sum of money double itself in 22 years?