If rupee one produces rupees nine over a period of 40 years, find the rate of simple interest?
Options:
(A) 22 1/7 %
(B) 22 8/2 %
(C) 22 1/9 %
(D) 22 1/2 %
(E) 22 2/2 % Think first, then make a decision. Some random thoughts:
9 = (1*40*R)/100
R = 22 1/2 % So the answer is (D).