Answers

2016-02-12T19:57:20+05:30
The average speed of the train is 30
1 5 1
Mark as branliest plz I wrote first please
2016-02-12T19:59:15+05:30
average speed = total distance / total time
therefore, 
av. speed = 1500/50
=30 m/s

i hope it helps.............
1 5 1