The ratio of a principal to its amount at simple interest at the end of 4 years is 5 : 7. What is the rate of interest per annum?

1. A Option A: 12.5%
2. B Option B: 7.5%
3. C Option C: 8%
4. D Option D: 10%

Answer checked 11 October 2026 · How we write and check questions