solve the questions below

'u'VAVE B 5. A cowboy,F puts his right ear to a railway track and hears the sound of an approaching train. He then hears the sound of the same train with his left ear through the air 0.87 5 later. lfthe speed of sound in the air is 340 Iii/s and the speed through steel is 6100111/3. should the con-*boy be getting out of the way {how far away is the train)