Problem: how many seconds will a train 100 meters long take to cross a bridge 130 meters long if the speed of the train is 36 kmph ?
Rationale: "explanation : d = 100 + 130 = 230 s = 36 * 5 / 18 = 10 mps t = 230 / 10 = 23 sec answer : option d"
annotated_formula: divide(add(130, 100), multiply(36, const_0_2778))