SOLUTION: On my flight from Christchurch to Sydney, the following is shown on the information screen in the passenger cabin: Current Speed : 864 km/h Distance from Departure: 1222 km Ti

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Question 1133182: On my flight from Christchurch to Sydney, the following is shown on the information screen in the passenger cabin:
Current Speed : 864 km/h
Distance from Departure: 1222 km
Time to Destination: 1h 20 min
If the plane continues at the same speed, then the distance in kilometres from Christchurch to Sydney is closest to
A. 2300
B. 2400
C. 2500
D. 2600
E. 2700
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
On my flight from Christchurch to Sydney, the following is shown on the information screen in the passenger cabin:
Current Speed : 864 km/h
Distance from Departure: 1222 km
Time to Destination: 1h 20 min
If the plane continues at the same speed, then the distance in kilometres from Christchurch to Sydney is closest to
:
Find how far the plane flies in 1 hr 20 min or in 4%2F3 hrs
Dist = time * speed
4%2F3 * 864 = 1152 km
the total distance
1152 + 1222 = 2374 km from Syd to ChristCh (B)