Question

An airplane flies 810 km in 1.5 hours. how far will the plane fly in 2.2 hours if it maintains the same air speed?

Answer 1

We can use a ratio here:
810 : 1.5
x : 2.2

Cross multiplying:
810 x 2.2 = 1.5x
x = 1,188 kilometers

The plane will fly 1,188 km if 2.2 hours if it maintains the same speed.