Question

A train 400 m long crosses a bridge 600m long in 25 sec. Find the speed of the train in km/h.​

Answer 1

Answer:

100/9 k/h

Step-by-step explanation:

Total distance  = length of train + length of bridge

= 400 + 600 m

= 1000 m

Time, taken = 25 sec

Speed = distance/time

= 1000/25

= 40 m/sec

= 40 *5/18 K/hr

= 100/9 k/hr

Answer 2

Answer:

total distance covered=400+600=1000m in 25 sec

speed=distance/time=1000(m)/25(sec)

={1000/1000(km)}/{25/3600(hr)}

=1×3600/25=144km/hr