Ilya and Anya each can run at a speed of 7.50 mph and walk at a speed of 4.00 mph. They set off together on a route of length 5.00 miles . Anya walks half of the distance and runs the other half, while Ilya walks half of the time and runs the other half. Required:
a. How long does it take Anya to cover the distance of 5.00 ?
b. Find Anya's average speed.
c. How long does it take Ilya to cover the distance?

Explanation:

From the question we are told that

Run speed of Ilya and Anya

Walk speed of Ilya and Anya

Total distance

Anya Walks 1/2d and runs 1/2d

ilya walks 1/2t and runs 1/2d

Generally the distance walked by Ilay k is mathematically given by

Since ilya walks 1/2t and runs 1/2t

Therefore

Therefore llay runing distance is m

a)Generally the Time walked by Anya is mathematically given by

Anya Walks 1/2d and runs 1/2d

Therefore

b)Generally the average speed of Anya S_A is mathematically given as

Generally the time taken b y llay is mathematically given by

0.55x745.7j and a calculator