[Solved] certain sum earns simple interest of Rs. 800 in 2 years at a certain rate of interest. If the same sum earns compound interest of Rs. 845 in the same period of 2 years, What must be the rate of interest?

Q.	certain sum earns simple interest of Rs. 800 in 2 years at a certain rate of interest. If the same sum earns compound interest of Rs. 845 in the same period of 2 years, What must be the rate of interest?
A.	5% p.a.
B.	7.5% p.a.
C.	10% p.a.
D.	12.5% p.a.
Answer» A. 5% p.a.

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