A plane flies 1,200 miles in 3 hours with a tailwind. On the return trip against the wind, it takes 4 hours. What is the average speed for the entire trip?
Answer
342.86 mph
How to solve it
1
Total distance: 1200 + 1200 = 2400 miles
2
Total time: 3 + 4 = 7 hours
3
Average speed: 2400 ÷ 7 ≈ 342.86 mph
Hints
Calculate total distance for both trips
Calculate total time for both trips
Average speed = total distance ÷ total time