Question

Nancy leaves the school and drives toward her town at 27 mph. greg leaves the same school 2 hours later and drives the same route at 45 mph. how long will it take greg to pass nancy?

Answer 1

Nancy's rate=27 mph
Greg's rate=45 mph
t=Greg's time
t+2=Nancy's time
Since they both traveled same distance then:
27(t+2)=45t
27t+54=45t
18t=54
t=3 hours
Greg will pass Nancy after 3 hours