City Pretoria is 7800 km directly to the east of city Canberra . A plane takes off from Canberra at 8:00am one day and lands at Pretoria at 3:00 am the next day. Five hours later it takes off from Pretoria and lands at 2:00 pm the same day at Canberra. There is a steady wind blowing at 25 km/hr from east to west. With respect to the wind, the plane cruises at the same uniform speed in either direction, but the speed with respect to the ground is different. What is the time difference between Canberra and Pretoria?

City Pretoria is 7800 km directly to the east of city Canberra . A pla

1.	City Pretoria is 7800 km directly to the east of city Canberra . A plane takes off from Canberra at 8:00am one day and lands at Pretoria at 3:00 am the next day. Five hours later it takes off from Pretoria and lands at 2:00 pm the same day at Canberra. There is a steady wind blowing at 25 km/hr from east to west. With respect to the wind, the plane cruises at the same uniform speed in either direction, but the speed with respect to the ground is different. What is the time difference between Canberra and Pretoria?
A.	5 hours
B.	4 hours
C.	3 hours
D.	6 hours
E.	7 hours
Answer» E. 7 hours