The simple interest on a certain principal for 4 years is 8/25 of the principal. Find the rate of interest.A8%B5%C7.5%D6%Answer: A. 8% Read Explanation: S.I = (P × R × T)/100 Let Principal and Simple Interest be 25x and 8x. 8x = [(25x) × 4 × R]/100 ⇒ R = 8%Read more in App