Question

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Answer 1

Answer:

The distance between two stations is 425 km. Two trains start simultaneously from these stations on parallel tracks to cross each other. The speed of one of the trains is greater than the other is 5 km / hr. If the distance between the two trains after 3 hours of their start is 20 km, find the speed of each train.

Step-by-step explanation:

time t=2hr ; total distance =340 distance travel by both train =340−30=310km

let speed of train x and x+5respectively.

we know, speed =

Time

Distance

distance travel by train 1 in 2hr is S=2x

distance travel by train 2 in 2hr is S

2

=2(x+5)=2x+10

distance travel by both the train in 2hr is S=2x+2x+10=4x+10=310

x=75 km/hr

x+5=75+5=80 km/hr

hence,the speed of each train is 75 km/hr and 80 km/hr.