1.

Simple interest on a certain sum at a certain annual rate of interest is $$\frac{1}{9}$$ of the sum. If the numbers representing rate percent and time in years be equal, then the rate of interest is -

A. $3\frac{1}{3}$$ %
B. %
C. $6\frac{2}{3}$$ %
D. 0%
Answer» B. %


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