At what rate of interest per annum will a sum double itself in 8 years – McqOptions

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1.	At what rate of interest per annum will a sum double itself in 8 years, if calculated as per Simple Interest formula?
A.	25%
B.	\[{{n}_{1}}\]
C.	\[{{R}_{2}}%\]
D.	None of these
Answer» D. None of these

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