Problem: a train 120 m long is running with a speed of 62 kmph . in what time will it pass a man who is running at 8 kmph in the same direction in which the train is going
Rationale: "explanation : speed of the train relative to man = ( 62 - 8 ) kmph = ( 54 × 5 / 18 ) m / sec = 15 m / sec time taken by the train to cross the man = time taken by it to cover 120 m at 15 m / sec = 120 × 1 / 15 sec = 8 sec answer : option d"
annotated_formula: divide(120, multiply(add(62, 8), const_0_2778))