A batch of goods can be transported in 18 hours by car a, and 1 / 3 of the goods can be transported in 8 hours by car B. if the goods are transported in car a for 10 hours first, (I can't see the supplement) The goods can be transported in 18 hours by car a, and 1 / 3 of the goods can be transported in 8 hours by car B. if the goods are transported in 10 hours by car a, and then the rest can be transported by car B, how many hours will it take?

A batch of goods can be transported in 18 hours by car a, and 1 / 3 of the goods can be transported in 8 hours by car B. if the goods are transported in car a for 10 hours first, (I can't see the supplement) The goods can be transported in 18 hours by car a, and 1 / 3 of the goods can be transported in 8 hours by car B. if the goods are transported in 10 hours by car a, and then the rest can be transported by car B, how many hours will it take?

Car B can transport 1 / 3 of the goods in 8 hours, and it takes 8 * 3 = 24 hours for car B to transport all the goods
Efficiency of car B: 1 / 24, efficiency of car a: 1 / 18
10 hour workload of car a: 10 * 1 / 18 = 5 / 9, remaining: 1-5 / 9 = 4 / 9
The remaining time required for B vehicle transportation: 4 / 9 △ 1 / 24 = 96 / 9 hours