Car a and car B depart from two places 380 kilometers apart at the same time, and meet in three hours. It is known that the speed ratio of car a to car B is 10:9. How many kilometers did car B travel when they met?

Car a and car B depart from two places 380 kilometers apart at the same time, and meet in three hours. It is known that the speed ratio of car a to car B is 10:9. How many kilometers did car B travel when they met?

380 × 910 + 9, = 380 × 919, = 180 km; a: when we met, car B traveled 180 km