Train A has a speed 35 miles per hour greater than that of train B. If train A travels 300 miles in the same times train B travels 195 miles, what are the speeds of the two trains?

Randy and trey take turns cleaning offices on the weekends. it takes randy at most 4 hours to clean the offices. it takes trey at most 6 hours to clean the offices. what is the greatest amount of time it would take them to clean the offices together? 2.4 hours 2.5 hours