Question

A train travels at a speed of 60 km/h for 0.52h at 30km/h for the next 0.24h and then at 70 km/h
For the next 0.71 h. what is the average speed of the train?​

Answer 1

Answer:

total distance is x

speed is distance /time

6okm/hr = x/o.52 h

60×0.52

31.2

30km/h =x/0.24h

x=30×0.24

x=7.2

70km/h=x/0.71

x=70×0.71

49.7

total time is 1.71

total distance is 88.1

avearge speed = total distance /total time

88.1/1.71hours

16.64m/s