Question 1168399
distance = rate*time
time up =t
distance up is 1.5t

time down is t-1
distance down is 4(t-1)=4t-4
the distances are equal
so 1.5t=4t-4
2.5t=4
t=8/5 or 1.6 hr.
the distance uphill was 2.4 miles (1.6*1.5)
the distance downhill was 2.4 miles (0.6*4)

The whole hike was 4.8 miles.