Marco goes to office either by train, scooter or car, the probabilities of which being 0.28, 0.18, and 0.54, respectively. The probabilities that he reaches office in time, if he takes train, scooter or car are 0.39, 0.25, and 0.4, respectively. If he reaches office in time, then find the probability that he travelled by train. 0.29 0.71 0.34 0.12