Final answer:
The plane flies 2100 km at 1100 km/h, which results in approximately 2 hours of flight time when rounded to the nearest half-hour, per the given answer options.
Step-by-step explanation:
The original question seems to be missing a crucial piece of information, which is the speed of the wind blowing east. However, based on the problem's structure, we can solve the question by using the given plane's ground speed (its speed relative to the ground) which is 1100 km/h, as the question does not provide wind speed to adjust this value. To find out how long it takes for the plane to fly 2100 km, we can use the formula time = distance / speed.
The distance the plane flies is 2100 km and the ground speed is 1100 km/h. Therefore, we calculate the time as follows:Time = 2100 km / 1100 km/h = 1.909 hours, which we round to the nearest half-hour as per the given answer options, resulting in approximately 2 hours to complete the flight.