Car a and car B leave from a and B respectively. Car a travels 1.5 times as much as car B every hour. Three hours later, the two cars meet. At this time, car a exceeds 45 kilometers from the midpoint. How many kilometers does car a and car B travel per hour?

Car a and car B leave from a and B respectively. Car a travels 1.5 times as much as car B every hour. Three hours later, the two cars meet. At this time, car a exceeds 45 kilometers from the midpoint. How many kilometers does car a and car B travel per hour?

B's speed: (45 × 2) △ 3 △ 1.5-1) = 90 △ 3 △ 0.5 = 60 (km); a's speed: 60 × 1.5 = 90 (km) a: a travels 90 km per hour, B travels 60 km per hour