a train travels at 60 km/h for 0.52h , 30 km/h for next 0.24 km/h , and then 70 km/h for next 0.71 h . what is the average speed of the train ?
Answers
Answered by
20
D1 = speed × time
= 60 × 0.52 = 31.2 km
D2 = 30 × 0.24 = 7.2 km
D3 = 70 × 0.71 = 49.7 km
Average speed = Total distance / Total time
= (31.2 + 7.2 + 49.7) / (0.52 + 0.24 + 0.71)
= 59.93 km/h
Thanks
= 60 × 0.52 = 31.2 km
D2 = 30 × 0.24 = 7.2 km
D3 = 70 × 0.71 = 49.7 km
Average speed = Total distance / Total time
= (31.2 + 7.2 + 49.7) / (0.52 + 0.24 + 0.71)
= 59.93 km/h
Thanks
Similar questions