Hi. I'm working on what I think is a rate problem but I'm having trouble defining my variables to solve the problem. Will you please help? I've tried a few things but it's all been junk.

Question:

Leila left home at noon, traveling at 24mph. An hour later her brother Josh, driving at 36 mph, set out to overtake her. How long did it take him to meet her?

Thank you so much for your help! My group really appreciates it.