A train is coming towards a cat, seating in a 30m long tunnel.The Cat is 10m away from that end of the tunnel from where the train is entering the tunnel.If the Cat starts to run towards the train it will meet the train just at the end of the tunnel & if the cat starts to run opposite to the train then also it will meet the train on the opposite end of the tunnel.If the speed of the train is 36mile/hour, than the speed of the cat is..