1.

The compound interest on a certain sum at the end of two years is Rs.408. The simple interest on the same sum for the same time is Rs.400. The rate of interest per annum is:_x005F_x000D_  _x005F_x000D_

A. 0.02
B. 0.8
C. 0.4
D. 0.08
Answer» B. 0.8


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