5. A train 280 metres long is running at a speed of 42 km/hr.take to p

1.	5. A train 280 metres long is running at a speed of 42 km/hr.take to pass a man standing on a platform?6.A train 350
Answer» The train is running at a speed of 42kmph. So the distance covered by train in meters per second is: 42(5/18)=35/3 m/sec Now the time required to the train to cross a man of is the same amount of time that train will take to cross itself that is 280 m. So 280(3/35) = 24 seconds.

5. A train 280 metres long is running at a speed of 42 km/hr.take to pass a man standing on a platform?6.A train 350

Answer»

The train is running at a speed of 42kmph. So the distance covered by train in meters per second is:

42*(5/18)=35/3 m/sec

Now the time required to the train to cross a man of is the same amount of time that train will take to cross itself that is 280 m.

So 280*(3/35) = 24 seconds.