Question

ek railgadi ki lambai 900 metre Hai vah ek khambe ko 45 second mein paar Karti Hai railgadi ki chaal kilometre prati ghanta mein gyat kijiye

Answer 1

length of the train = 900 m

time taken = 45 s

a/q

in 1s train cover 900/45 = 20m/s

now,

in 1 min. train covers 20×60 = 1200m/s

distance covered in km = 1200 ×5/18= 66 km/s (approx)