Question

A flight moving with an average speed of 800 km/h took 4 hours to complete a trip. On its
return trip, it took 5 hours to reach its destination due to bad weather. Find the change in
the speeds of the flight.​

Answer 1

Answer:

160 km/h

Step-by-step explanation:

In the first case,

time = 4 h

speed = 800 km/h

distance = 800 × 4 km = 3200 km

In the second case,

time = 5 h

distance will be the same, obviously.

speed = 3200/5 km/h = 640 km/ h

800-640=160

Answer 2

in four hours to complete one trip speed of flight 800 km in 5hr there was a bad wether condition we have cancel 800 from 5 so the answer is 160