The film crew has a day's journey from city a to city B. they plan to walk 100 kilometers more in the morning than in the afternoon to have lunch in city C Due to the traffic jam, I arrived at a small town at noon, driving only one third of the original plan. After passing the town, the car drove 400 kilometers, and then stopped to have a rest in the evening. The driver said that I would arrive at the destination by taking another half of the journey from City C to here. How many kilometers is the distance between city AB and City C?

The film crew has a day's journey from city a to city B. they plan to walk 100 kilometers more in the morning than in the afternoon to have lunch in city C Due to the traffic jam, I arrived at a small town at noon, driving only one third of the original plan. After passing the town, the car drove 400 kilometers, and then stopped to have a rest in the evening. The driver said that I would arrive at the destination by taking another half of the journey from City C to here. How many kilometers is the distance between city AB and City C?

If the distance between city B and City C is x km, then city a is (x + 100) km away from city C
X+100+X=（X+100）/3+400+[(X+100）/3+400-（X+100）]/2
The solution is x = 250
Therefore, the distance between the two cities is 250x2 + 100 = 600 (km)
A: the distance between the two cities is 600 kilometers

The film crew had a day's journey from city a to city B. they planned to walk 100km more in the morning than in the afternoon to have lunch in city C. due to the traffic jam, they came to a small town at noon and drove only one-third of the original plan. After passing the town, the car drove 400km and stopped in the evening. The driver said that they would arrive at the destination by taking another half of the journey from city C. he asked the distance between two places

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The film crew had a day's journey from city a to city B. they planned to walk 100 kilometers more in the morning than in the afternoon to have lunch in city C. due to the traffic jam, they arrived at a small town at noon and drove only one third of the original plan. After passing the town, the car drove 400 kilometers and stopped in the evening to have a rest. The driver said that one third of the journey from City C to here would reach the destination How many kilometers away?

Suppose the distance between the two cities is x km, then we can know from the question: CA = 12x + 50 km, BC = 12x-50 km ∵ be = 13bc = 16x-503km, CE = 23bc = 13x-1003km, ad = 13ac = 13 (12x + 50) = 16x + 503de = ab-ad-be = x - (16x + 503) - (16x-503) = 23x, ∵ de = 400, ∵ 400 = 23x ∵ x = 600 (km), so the distance between the two cities is 600 km

The film crew has a day's journey from city a to city B, and plans to walk 100 kilometers more in the morning than in the afternoon to have lunch in city C. due to the traffic jam, they arrived at a small town at noon, driving only one-third of the original plan. After passing the town, the car drove another 400 kilometers, and stopped in the evening to have a rest. The driver said that another half of the journey from City C would reach the destination

600 kilometers
100/2=50
(1/2*x+50)*1/3+400+(1/2*x-50)*1/3=x
x=600