Question

The plane takes 2.5 hours to fly from one city to another. The distance between these cities is 2000 km. How many hours will it take for this airplane to fly 4200 km at the same speed?

A) 3.5 hours
B) 4 hours
C) 5 hours
D) 6 hours

Answer 1

The airplane will take approximately 5.25 hours to fly 4200 km at the same speed.

Step-by-step explanation:

To find the time it will take the airplane to fly 4200 km at the same speed, we can set up a proportion using the given distance and time:

Distance1 / Time1 = Distance2 / Time2

Substituting the values, we get:

2000 km / 2.5 hours = 4200 km / Time2

Cross-multiplying, we get:

2000 * Time2 = 4200 * 2.5

Simplifying, we get:

Time2 = (4200 * 2.5) / 2000

Time2 = 5.25 hours

Therefore, it will take the airplane approximately 5.25 hours to fly 4200 km at the same speed.