A train travels some distance
with a speed of 30 km/h and returns
with a speed of speed of 45km/h.
calculate the average speed
of a train
Answers
Answered by
1
Hi friend, let d/2 be the distance covered by train with a speed of 30kmph in t1 hours
→t1=d/60
it covers d/2 distance with a speed of 45km/h in t2 hours
→t2=d/90
average speed = total distance/total time
=d/(t1+t2)
=1/(1/60+1/90)
=1/(3+2)/180
=180/5=36kmph
I hope this will help u ;)
Plz follow me on tiktok I’d - @abhishekgore35 and mark as brainlist
→t1=d/60
it covers d/2 distance with a speed of 45km/h in t2 hours
→t2=d/90
average speed = total distance/total time
=d/(t1+t2)
=1/(1/60+1/90)
=1/(3+2)/180
=180/5=36kmph
I hope this will help u ;)
Plz follow me on tiktok I’d - @abhishekgore35 and mark as brainlist
Answered by
1
Answer:
37.5
Explanation:
total distance is 75
total time is 2 hours
average speed=75 by 2=37.5
Similar questions