With a tailwind, a aircraft can fly 360 miles in 3 hrs. Against this same wind, the aircraft can fly the same distance in 4hrs. Find the effect of the wind and the average of the aircraft

15mph

Step-by-step explanation:

360 divide by 3 =  120

360 divide by 4 = 90

120 - 90 = 30

30 divide by 2 (cause boosting speed and drag) = 15

so let's check

120-15=105

105+15=120

105-15= 90

so the answer's 15.

Let us suppose we have a triangle ABC as shown in the attached image.

Now, let us we draw a  perpendicular line from the vertex A to the base BC. Let the line meets the base BC at D.

Then, this perpendicular line AD will separate the triangle  ABC into two right angle triangle ADB and triangle ADC.