Question

A train travels 260 km speed at a time. If the speed

Answer 1

Answer:

Time taken to cover a distance of 360 km at new speed = 360/x+5 hours. But since speed cannot be in negative. ∴ x = 40 km/hr. Hence, the original speed of the train is 4 kmhTo cross the bridge the distance to be travelled= Length of train + Platform

=( L + 260), where L= length of the train.

Speed of the train= 72- Km= 72 x 5/18 =20- m/ sec.

Distance travelled in 23- seconds= 20 x 23= 460- metres.

So Length of the train= 460- 260

= 200- metres