Problem: a sum of money deposited at c . i . amounts to rs . 5000 in 5 years and to rs . 5750 in 6 years . find the rate percent ?
Rationale: 5000 - - - 750 100 - - - ? = > 15 % answer : d
annotated_formula: multiply(divide(subtract(5750, 5000), 5000), const_100)