Seu leaves Atl heading north on I75 traveling at 52mph Jane

Seu leaves Atl heading north on I-75 traveling at 52mph. Jane leaves ATL 2 hrs later traveling in the same direction at 77mph. How many hours after Sue left ATL did Jane catch up?

sue starts 2 hrs ahead or 104 miles ahead.
overtake speed is 77-52=25 mph
104/25+2=6.16 hrs=6 hrs 10 min