Question

Speed of train, which is 180 m long, is 45 km/hr. It crosses a platform in 24 second while another train cross the same platform in 36 second having speed 36

(km/hr. Find the length of the second train.

Answer 1

Answer:

The length of the second train is 240 m

Step-by-step explanation:

1 hr = 3600 sec,45 km = 45000 m

first train 3600 sec crosses 45000 m

then 24 sec crosses (45000/3600)×24

= 300 m

while a train crosses a platform it crosses its own length + the station length

As its length is 180 m then the platform length is (300-180)m = 120 m

second train 3600 sec crosses 36000 m

then 36 sec crosses (36000/3600)×36m

= 360 m

As it is the same platform then the second train's length is (360-120)m = 240 m.