Question

80m long train passes railway bridge of 120m length is 20sacond find speed of the train​

Answer 1

Step-by-step explanation:

speed of train - x km / h - 5/ 18 x

length of train - 80 m

length of bridge - 120 m

80+120-200m

time taken 20 sec

1. 200/20=5/18x
2. 10/5multiply 18
3. ans 36 km / hour

Answer 2

Answer:

10 m/s

Step-by-step explanation:

Length of train = 80 m

Length of bridge = 120 m

Total Distance = (120 m + 80 m) = 200 m

Time = 20 s

Speed = (200 ÷ 20) m/s

= 10 m/s