At 1 PM, Ship A leaves port traveling 15 mph. Three hours later, Ship B ... ...

At 1 PM, Ship A leaves port traveling 15 mph. Three hours later, Ship B leaves the same port in the same direction traveling 25 mph. At what time does Ship B pass Ship A?
(A)    8:30 PM
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Math - Problem Set X: Word Problems