In 1957, Japanese engineers designed a train that broke world records for speed. The rate of speed was constant and is shown in the tables below. time distance
5 min 12.9 miles
20 min. 51.6 miles

Six years later, in 1963, Japanese engineers again set a world record by designing a train that could run 75% faster than the train they developed in 1957.

If both trains traveled for a total of 2.5 hours, how much farther would the train designed in 1963 travel than the train designed in 1957?