A person drove 180 miles in the same amount of time that it

A person drove 180 miles in the same amount of time that it took a plane to travel 630 miles. The speed of the plane was 150 mph faster than the speed of the car. Find the speed of the plane. The speed of the plane was

Solution

Let the time taken , t ,

So, speed while driving = d/t = 180/t

speed via plane = 630/t

Speed of plane is 150 mph faster than speed of car

So, 630/t - 180/t = 150

450/t = 150

t = 3 hrs

Speed of the plane = 630/3 = 210 mph