Question

length of a train is 500 metres its speed is 36 km per hour it crosses a bridge in 1 minute 12 seconds then what is the length of a bridge in minutes​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

220 meters

Step-by-step explanation:

The length of train = 500 meters

speed = 36 km / hour =  6 m / sec

Time taken to cross the bridges = 72 secs.

Let the length of bridge = x meter

∴ The total distance traveled by train to cross the bridges = (500 + x) meters.

By using the speed formula ,

speed $= \frac{distance}{time}$

10 = $\frac{500 + x}{72}$

x =  720 - 500 = 220 meters