Train A whose length is four-fifth of that of train B crosses it traveling in opposite direction in a time which is 4/7th of the time taken by train A to cross it when traveling in same direction. Calculate the ratio of the speeds of train A and train B.
In a race of 1.6 km, if A allows B a start of 160 m and the ratio of the speeds of A and B is 10 :9, then who wins and by what margin?
The speed of the train is two more than twice of the time taken to cover 1012 km at uniform speed. What is the ratio of the values of time taken to cover the distance and speed of the train?
The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 km in 4 hours, then what is the speed of the first train ?
If the ratio of the speed of a boat in downstream and the speed of the stream is 10:1. If the boat can travel 320 km upstream in 20 hours then find the total distance travelled (in km) by the boat in still water in the same time?
