## Answer :

67.5meters

**Explanation:**

speed =distance/time

speed of the moving train is 54km / hr

so in meter /sec speed of train will be 22.5meter/sec

- so distance cover by train =speed *time
- so distance=1012.5meter
- length of the train =150meters
- so length of the bridge=distance travelled by train /length of train
- so length of bridge=1012.5/150
- so length of bridge=67.5meters