Question
If the ratio of principal and the simple interest for 5 years is 10 : 3, then the rate of interest is :
Answer: Option A Answer: (a)Using Rule 1,$\text"Principal"/ \text"Interest" = 10/3$$\text"Interest"/ \text"Principal" = 3/10$Rate = $\text"S.I. × 100"/ \text"Principal × Time"$= $3/10 × 100/5$ = 6% per annum
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