Problem: if 40 % of a certain number is 160 , then what is 90 % of that number ?
Rationale: "explanation : 40 % = 40 * 4 = 160 90 % = 90 * 4 = 360 answer : option d"
annotated_formula: multiply(divide(160, divide(40, const_100)), divide(90, const_100))