The cruising speed of the AN-158 aircraft is 820 km / h. How long will it take this plane to fly 410 km / h?

Initial data: V (aircraft cruising speed) = 820 km / h; S (distance that the aircraft must fly at cruising speed) = 410 km.

To find the time of movement of the aircraft, it is necessary to divide the distance traveled by the flight speed: t = S / V.

Let’s make a calculation: t = 410/820 = 0.5 h (30 min or 1800 s).

Answer: At cruising speed, the aircraft will fly 410 km in 0.5 h (30 min, 1800 s).