Answer: 21.22 years.
Step-by-step explanation:
Here we can simply use the relation:
Time = Distance/Speed.
We know that the speed of the passenger jet is 500mi/hr.
And the average distance between Earth and the Sun in miles is:
Distance = 92,955,807 miles
Then the time needed to travel that distance will be:
Time = (92,955,807 miles)/500mi/hr = 185,911.614 hours.
But we want this in years.
We know that in one day, we have 24 hours, then this time in days is:
Time = (185,911.614/24) days = 7,746.3 days.
And in one year we have 365 days, then this time in years is:
Time = (7,746.3/365) years = 21.22 years.