A train covers the distance between A and E passing through station B, C and D. If its speed is uniform between any two successive stations, we can definitely say that __________.
Answers
Explanation:
We can sat that the train is going on uniform speed and it is not staying at any passing station .
here we can see that the train which was going from station A to E .
And between A and E the train passes through B,C and D .
The speed of train was uniform between any two successive stations . so here we can say that the train is not stopping at all .
and it is going on uniform motion from A to E .
Hope you understand .
Answer:
Explanation:
Let the speed of the train be xkm/h and the time taken by train to travel the given distance be t hours and the distance to travel be dkm. We know that,
⇒Speed=
Time
Distance
⇒x=
t
d
∴d=xt.......(i)
Case 1
⇒(x+10)×(t−2)=d
⇒xt+10t−2x−20=d
⇒d+10t−2x−20=d
⇒−2x+10t=20...... (ii)
Case 2
⇒(x−10)×(t+3)=d
⇒xt−10t+3x−30=d
⇒d−10t+3x−30=d
⇒3x−10t=30......... (iii)
Adding equations (ii) and (iii), we gets
⇒x=50
Substitute the value of x in (ii) we gets
⇒(−2)×(50)+10t=20
⇒−100+10t=20
⇒10t=120
⇒t=12 hours
Substitue the value of t and x in equation (i), we gets
Distance to travel =d=xt
⇒d=12×50=600Km
Hence, the distance covered by the train is 600km.