Problema Solution
A long distance trucker traveled 176 miles in one direction during a snow storm. The return trip in rainy weather was accomplished at double the speed and took 4 hours less time. Find the speed going.
Answer provided by our tutors
okay so S is the speed going
S' is the speed going back
we know that
S' = 2S
we also know that speed = distance/time
We know the distance to be 176 miles
we also know that the time for speed S' is 4 hours
so S' = 176/4 = 44 miles per hour
and since S' = 2S
44 = 2S
S = 22 miles per hour
Thus the speed going is 22 miles per hour