A train covers the first 85km of its journey at 51km/hr,the next 125 km at 75km/hr and the last 90km at 135km/hr. Find a) The total time it takes to complete the journey b) It's average speed for the whole journey
Answers
Answered by
1
Answer:
The train covers total distance in three legs , first 150 km. In 3 hours , next 125 km in 2 hours and last 180 km in 3 hours 30 minutes
We know Average speed = total distance / total time
Total distance in three legs = 150 + 125 + 180 kns = 455 kms.
Total time = 3 hours + 2 hours + 3 hours 30 minutes = 8 hours 30 minutes = 8.5 hours
Average Speed = 455 km / 8.5 hours
Average Speed = 53.53 km/hour
The average speed of the train is 53.53 km/hr.
Answer :The average speed of the train is 53.53 km/hr.
Step-by-step explanation:
Mark as brainliest
Similar questions