Two rescue workers leave at the same time to find an injured hiker. The first walks 25 degrees west of north at 3.5 mi/h, and the second walks 36 degrees east of north at 2.5 mi/h. After 2 hours, the second worker finds the hiker and radios the first worker for help. If the first worker jogs directly to the second worker at 6 mi/h, how long will it take for her to arrive?
a) 0.67 hours
b) 1.33 hours
c) 2.67 hours
d) 3.33 hours
