The speed of the full train is two-thirds of that of the express train. The two trains meet each other six hours after leaving and continue to move forward. The express train is several hours earlier than the slow train

The speed of the full train is two-thirds of that of the express train. The two trains meet each other six hours after leaving and continue to move forward. The express train is several hours earlier than the slow train

How much is the whole journey (1 + 2 / 3) X6 = 10
Fast several hours earlier than slow 10 / 2 / 3 -- 10 / 1 = 15 - 10 = 5 hours

A train runs 255 kilometers in 3 hours. According to this calculation, it runs 8 hours from a to B. how long is the railway between a and B? (answer in two ways) arithmetic method: proportion method:

Using arithmetic method: 255 ／ 3 × 8, = 85 × 8, = 680 (km); proportion method: suppose the length of railway between Party A and Party B is x km, X8 = 2553, 3x = 2040, & nbsp; X = 2040 ／ 3, & nbsp; X = 680; answer: the length of railway between Party A and Party B is 680 km

The railway between a and B is about 1650 meters long. A train starts from a place and runs at 79 kilometers per hour. After 18 hours, how many kilometers are there from B place?

The railway between a and B is about 1650 meters long. A train starts from a place and runs at a speed of 79 kilometers per hour. After 18 hours, it is still (228) kilometers away from B place
1650-79×18
=1650-1422
=228 km
If you don't understand, please ask

The railway from a to B is about 1464 km. A fast train from a to B runs 5 / 12 of the whole journey in 5 hours
(1) How many kilometers is the express train from B?
(2) How many kilometers can the train run for another seven-thirds of an hour?

(1) How many kilometers is the express train from B?
1464-1464x5 / 12 = 854km
(2) How many kilometers can the train run for another seven-thirds of an hour?
Speed: 1 / 5x1464x5 / 12 = 120 km / h
120x7 / 2 = 420 km