With a given rate of simple interest the ratio of the principle and amount for a certain period of time is . After 3 years with the same rate of interest to the ratio of the principle and amount becomes . The ratio of interest per annum is?
A.
B.
C.
D.
Answer:B
With a given rate of simple interest the ratio of the principle and amount for a certain period of time is . After 3 years with the same rate of interest to the ratio of the principle and amount becomes . The ratio of interest per annum is?
A. B. C. D.