At 8:00 a.m., a bus goes from place a to place B, and at 2:00 p.m., it just completes 40% of the whole journey, which is 120 kilometers away from half of the journey, How many kilometers per hour?

At 8:00 a.m., a bus goes from place a to place B, and at 2:00 p.m., it just completes 40% of the whole journey, which is 120 kilometers away from half of the journey, How many kilometers per hour?

Half of the whole journey 120 (1 / 2 - 40%) / 2 = 600 km
40% of the time
14-8 = 6 hours
(600-120) △ 6 = 80 km / h
80 km / h

It takes three hours for passenger cars and four hours for freight cars to travel from Luxi to Kunming at the same time. After two hours, the distance between the two cars is 33 kilometers. How many kilometers is the distance between Luxi and Kunming?

(13-14) × 2 = 112 × 2, = 16; 33 △ 16 = 198 (km). A: the distance between Luxi and Kunming is 198 km

The two passenger and freight cars are going from place a to place B at the same time. When the passenger car completes two seventh of the whole journey, the freight car just runs 100 kilometers. When the passenger car arrives at place B, the freight car stops
It's 70 kilometers away from B. how many kilometers are there between a and B?

After the bus finished the whole journey, the truck went:
100 △ 2 / 7 = 350 km
Distance between a and B: 350 + 70 = 420 km