Question

7.
A train 150 m long is running at 72 km/hr. It crosses a bridge in 13 seconds. Find
the length of the bridge.​

Answer 1

Answer:

110 m

Step-by-step explanation:

Let the length of the bridge be x

Length of train = 150 m

Total distance traveled by train = 150+x

Time = 13 seconds

Speed = 72 km/hr = 20 m/s

Now Speed = \frac{Distance}{Time}Speed=

Time

Distance

20 = \frac{150+x}{13}20=

13

150+x

20 \times 13 = 150+x20×13=150+x

260 = 150+x260=150+x

260 -150=x260−150=x

110=x110=x

Hence the length of the bridge is 110 m.

Answer 2

Step-by-step explanation:

MARK AS BRAINLIST AND THANXXX