a 150 metre long train crosses a bridge of length 250 metres in 25 seconds find its velocity

Answer 1

Total distance when train reaches end of bridge
=(150+250)m
=400 m

s=vt
400=v(25)
v=16 m/s

Answer 2

I want this answer in long term...
In full explanation....
Like= u = .....
v=……
And many more...Othervise answer is correct

Thanku