Question

Between two stations a train accelerates uniformly at first, then moves with constant speed and
finally retards uniformly. If the ratios of time taken are 1:8:1 and the greatest speed is 60 km/hr,
find the average speed over the whole journey,
(A) 60 km/hr
(B) 54 km/hr
(C) 30 km/hr
(D) 20 km/hr​

Answer 1

the correct option is c

30km/hr

please mark this answer in brain list

and follow me

Answer 2

I think option numbers c that is 30 kilometre per hour is the correct answer