 
 <translate> Q: If rupee one produces rupees nine over a period of 40 years, find the rate of simple interest?
Options:
(A) 22 1/9 %
(B) 22 2/2 %
(C) 23 1/2 %
(D) 22 1/2 %
(E) 62 1/2 % Let's give some random thoughts before answering. <hau> Tambaya: Idan rupee daya ya samar da rupees tara a tsawon shekaru 40, sami yawan riba mai sauki? Zaɓuɓɓuka: (A) 22 1/9 cikin dari (B) 22 2/2 cikin dari (C) 23 da rabi % (D) 22 da rabi % (E) 62 1/2 % Bari mu ba da wasu tunani na bazuwar kafin amsawa. 