Probability — practice question

Each day, Juan travels to college using one of three methods: car, bus, or walking. The probability that he travels by car is $0.2$, the probability that he travels by bus is $0.45$ and the probability that he walks is $0.35$. If Juan goes by car, the probability that he gets there early is $0.6$. If he goes by bus, the probability that he gets there early is $0.1$. If he walks, he always gets there early.