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A and B two cars from 135 kilometers away from a, B two cities at the same time, meet 1.5 hours later?
The sum of two vehicle speeds 135 / 1.5 = 90 km / h
Speed of car a = 90 * 5 / (5 + 4) = 50 km / h
Vehicle B speed = 90-50 = 40 km / h
When the distance between the two vehicles is 56 km, 75% of the whole journey is taken by passenger cars and 3 / 5 of the whole journey is taken by freight cars?
Remaining distance: 1-1-75 / 100 = 1 / 4
Remaining distance of truck: 1-3 / 5 = 2 / 5
The overlap of passenger and freight cars is 56 km
The proportion of overlapping parts of passenger and freight cars: 1-1 / 4-2 / 5 = 7 / 20
Distance between Party A and Party B: 56 km (7 / 20) = 160 km
It is known that car B travels 46 kilometers per hour and car a 54 kilometers per hour. How many kilometers are there between the two cities
54-46 = 8 (hour) 12.4 △ 8 = 1.55 (hour) 1.55 × (46 + 54) = 155 (km) answer two cities are 155 km apart
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