If rupee one produces rupees nine over a period of 30 years, find the rate of simple interest? Choose the correct choice from the following options.
A) 10 %	B) 20 %	C) 30 %	D) 22 %	E) 28 %
9 = (1*30*R)/100   R = 30 %   ANSWER:30 %
<result>C</result>
If rupee one produces rupees nine over a period of 30 years, find the rate of simple interest?