Problems On Tunnel

In the previous problem, if tunnel is dug along a chord, find time period.

A train 700 m long is running at the speed of 72 km/h. If it crosses a tunnel in 1 min, then the length of the tunnel (in m) is

A train 800 metres long is running at the speed of 78 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in metres) is :

A train 350 m long is running at the speed of 36 km/h. If it crosses a tunnel in 1 minute, then the length of the tunnel (in metres) is :

A train 350 m long is runing at the speed of 36 km/h if it crosses a tunnel in 1 minute the the length of the tunnel ( in metres ) is:

A train 800 metres long is running at a speed of 78km/hr. if it crosses a tunnel in 1 minute, then the length of the tunnel (in metres) is: 130b.360c.500d.540