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

• ক (8/3)%
• খ (5/3)%
• গ (10/3)% ✅ সঠিক উত্তর
• ঘ (7/3)%