The distance between the two cities is 564 km. Two trains leave the two cities at the same time and meet each other in 6 hours. It is known that the speed of the first train is 2 km faster than that of the second train per hour. What are the speeds of the two trains?
(564-6 × 2) △ 6 / 2, = (564-12) △ 6 / 2, = 552 / 6 / 2, = 46 (km / h); 46 + 2 = 48 (km / h). A: the speed of the first train is 48 km / h, and that of the second train is 46 km / h
The distance between the two cities is 564 km. Two trains leave the two cities at the same time and meet each other in 6 hours. It is known that the speed of the first train is 2 km faster than that of the second train per hour. What are the speeds of the two trains?
(564-6 × 2) △ 6 / 2, = (564-12) △ 6 / 2, = 552 / 6 / 2, = 46 (km / h); 46 + 2 = 48 (km / h). A: the speed of the first train is 48 km / h, and that of the second train is 46 km / h
Train a and B start from station a and B at the same time and run in opposite directions. When they meet, train a runs 100 kilometers more than train B. It is known that the speed of train B is 35 times that of train a, so find the length of the railway between station a and B
100 (55 + 3-35 + 3) = 100 (58-38) = 100 (14) = 400 (km) a: the whole journey is 400 km
The two trains depart from two places 580 kilometers apart and meet each other in five hours. The speed ratio of a and B is 14:15
How many kilometers does a car travel
Let's say that when we meet, car a runs x kilometers
x :(580-x)=14 :15
15x=(580-x)×14
15x+14x=580×14
29x=8120
x=280
A: when they met, car a traveled 280 kilometers