Answer:
<em>Rate of jet in still air = 960 miles/ hr</em>
<em>Rate of the wind = 230 miles/ hr</em>
Step-by-step explanation:
Let the speed of jet in still air = miles/hr
Let the speed of air = miles/hr
So, against the wind, the resultant speed = miles/hr
And, with the wind, the resultant speed = miles/hr
Distance traveled against the wind = 2920 miles
Time taken against the wind = 4 hrs
Formula for distance is:
Distance traveled with the wind = 7140 miles
Time taken against the wind = 6 hrs
Adding (1) and (2):
Putting in (1):
Therefore, the answer is:
<em>Rate of jet in still air = 960 miles/ hr</em>
<em>Rate of the wind = 230 miles/ hr</em>
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