the ratio between the speeds of two trains is 7:8 , if the second train runs 400 kms .in 5 hours , the speed of first train is ?
mridul savio Pinto (articled trainee ) (1477 Points)
29 January 2011the ratio between the speeds of two trains is 7:8 , if the second train runs 400 kms .in 5 hours , the speed of first train is ?