While completing a race, edward spent 54 minutes walking. if his ratio of time walking to jogging was 6: 5, how many minutes did he spend completing the race?

  99 minutes

Step-by-step explanation:

Given: While completing a race, Edward spent 54 minutes walking.

The ratio of time walking to jogging was 6:5 i.e.     (1)

Let x be the time taken ( in minutes ) by him for jogging.

then, the ratio of time walking to jogging will be  (2)

From (1) and (2), we have

So, the number of minutes he took for jogging = 45 minutes

Now, the total time he spent on completing the race= 54+45=99 minutes