Gina flew from Toronto to Chicago and back again. The average speed of the plane was 332 km/h to Chicago and 415 km/h back to Toronto. If the actual flying time for the round trip was 4.5 h, how far is it from Toronto to Chicago?

Question

Gina flew from Toronto to Chicago and back again.  The average speed of the plane was 332 km/h to Chicago and 415 km/h back to Toronto.  If the actual flying time for the round trip was 4.5 h, how far is it from Toronto to Chicago?

bobpursley · Answer

distance=speed*time distancethere=332*T distanceback=415*(4.5-T) set them equal, solve for T, the time going there. Then find distance.