00:01
So, let ania's walking speed be denoted by v of w, which is ania's walking speed.
00:11
This is given to us to be equal to 4 miles per hour, that is 4 miles per hour and her running speed v of r, it is given to us to be 8 .6 miles per hour.
00:28
V of r is ania's running speed.
00:31
Now, the total distance that she covers, distance that she covers, distance d if we denote it by d, then it is 5 miles.
00:45
However, she runs half of the total distance and walks half of the other distance.
00:50
So her running and walking distance will be equal to d by 2, that is 5 by 2, which is equal to 2 .5 miles.
01:00
Right, and we all know that the general principle of relationship between time, distance and speed is that the total time taken to cover a distance is the ratio of that distance upon the speed at which the distance is covered.
01:20
So the total time taken by ania to run 5 miles, if we denote it by t5, then it will be equal to the sum of the time that she takes to cover half of the distance of 5 miles, that is 2 .5 miles by running or by walking.
01:39
So this will be 2 .5 miles upon walking speed, running speed, plus the time she takes to cover half of the distance that is 2 .5 miles by walking.
01:49
So that will be the ratio of 2 .5 upon v of w...