Problem: if 60 % of 3 / 5 of a number is 18 , then the number is ?
Rationale: "let the number be x . then 60 % of 3 / 5 of x = 18 60 / 100 * 3 / 5 * x = 18 x = ( 18 * 25 / 9 ) = 50 required number = 50 . correct option : d"
annotated_formula: divide(18, multiply(divide(60, const_100), divide(3, 5)))