An aircraft flew a distance of from amsterdam to cairo at an average speed of 820 km/h and returned non-stop by the same route at an average speed of 656 km/h. given that the aircraft took 1 hour more for the return trip, calculate x

Step-by-step explanation:

Given that the distance from Amsterdam to Cairo is x.

It is given that first the aircraft flows with an average speed of 820 km/h.

Time taken to reach Cairo would be

Without stop the aircraft would return back withan average speed of 656 km/h.

Time taken for this is ,

Now its given that t2 is 1 hour more than t1.

t2=t1+1,

3; 9 is 8 to -4

step-by-step explanation:

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.