Ann Leaves a Town Traveling in Her Car at a Rate

Multiple Choice

Ann leaves a town traveling in her car at a rate of 20 miles per hour. One hour later, Pamela leaves the same town traveling the same route at a rate of 30 miles per hour. How long will it take Pamela to overtake Ann?

A) 30 hours
B) 22 hours
C) 32 hours
D) 2 hours