Question 46563
YOU DSID NOTHING WRONG. I FOUND THE SPEED NOT THE TIME 

d=r*t 360-270=S*2 OR 90=2S OR S=90/2 O0R S=45 MPH

TIME=D/S OR 360/45=270/45+2 OR 8=6+2 OR 8=8 THUS THE TIME IS 8 HRS. & 6 HRS.

SORRY FOR THE CONFUSION. I NEED TO READ THE QUESTION MORE CAREFULLY.