Question

abigail's airplaine trip took 4 hrs.The airplane flew at a speed of 900 km/hr.what distance did she travel

Answer 1

Answer:

Abigail's airplane trip took 4 hours. For half of that time, the airplane flew at a speed of 900 km/h, and for the rest of the time, it flew at a speed of 760 km/h. What distance did Abigail travel?

Short Answer: 3320 km

Long Answer:

Fact: If the journey is completed in two halves with same time, one at speed x and the other at speed y, then the average speed of the whole journey is (x+y)/2

Here x = 900 and y = 760

Thus average speed for the whole journey is (900+760)/2 = 830 km/h

As total time is 4 hours, the distance traveled is 4 x 830 = 3320 km

Answer 2

Answer:

If the journey is completed in two halves with same time, one at speed x and the other at speed y, then the average speed of the whole journey is (x+y)/2

Here x = 900 and y = 760

Thus average speed for the whole journey is (900+760)/2 = 830 km/h

As total time is 4 hours, the distance traveled is 4 x 830 = 3320 km