Question

A 123 m long train is moving at 54 kmhr. If the length of bridge is 177m,
them in how much time will the train cross the bridge ?​

Answer 1

Answer:

20 sec

Step-by-step explanation:

speed= 54 km/hr

= 54*5/18

= 15 m/sec

total distance =123+177=300

distance/speed= 300/15=20 sec