During the 9 mile hike he spends 2 periods of half hour swimming = 1 hour.
actual hiking time = 3*3 = 9 hours
So total time = 9+1 = 10 hours
Let, the original price = x
It would be: x*60% = 48
x = 48 / 0.60
x = 80
In short, Your Answer would be $80
Hope this helps!
What about it? What is the question?